IPV20 TECHNICAL
REFERENCE &
INSTALLATION GUIDE
13/06/2012
IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
CAVEAT
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation. Any Changes or modifications not expressly approved by
the party responsible for compliance could void the user’s authority to operate the
equipment.
Note: This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installation.
This equipment generates uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
--Reorient or relocate the receiving antenna.
--Increase the separation between the equipment and receiver.
--Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
--Consult the dealer or an experienced radio/TV technician for help.
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
CUSTOMER INFORMATION
1. This equipment complies with Part 68 of the FCC rules and the requirements
adopted by the ACTA. On the bottom of this equipment is a label that contains,
among other information, a product identifier in the format US: UL7IS00BIPV20. If
requested, this number must be provided to the telephone company.
2. A plug and jack used to connect this equipment to the premises wiring and
telephone network must comply with the applicable FCC Part 68 rules and
requirements adopted by the ACTA. A compliant telephone cord and modular plug is
provided with this product. It is designed to be connected to a compatible modular
jack that is also compliant. See installation instructions for details.
3. If this equipment [Karel IP PBX IPV20] causes harm to the telephone network, the
telephone company will notify you in advance that temporary discontinuance of
service may be required. But if advance notice isn't practical, the telephone company
will notify the customer as soon as possible. Also, you will be advised of your right to
file a complaint with the FCC if you believe it is necessary.
4. The telephone company may make changes in its facilities, equipment, operations
or procedures that could affect the operation of the equipment. If this happens the
telephone company will provide advance notice in order for you to make necessary
modifications to maintain uninterrupted service.
5. If trouble is experienced with this equipment [US: UL7IS00BIPV20], for repair or
warranty information, Service can be facilitated through our office at:
U.S. Agent Company name:
RONCO COMMUNICATIONS
Address: 84 Grand Island Blvd
Tonawanda, NY 14150
Tel: 716-873-0760
Fax: 716-879-8189
If the equipment is causing harm to the telephone network, the telephone company
may request that you disconnect the equipment until the problem is resolved.
Please check if KAREL has office or agent at USA to provide the repair or warranty
services? If not then, you can just provide the office at Turkey or other country.
6. Connection to party line service is subject to state tariffs. Contact the state public
utility commission, public service commission or corporation commission for
information.
7. If your home has specially wired alarm equipment connected to the telephone line,
ensure the installation of this [US: UL7IS00BIPV20] does not disable your alarm
equipment. If you have questions about what will disable alarm equipment, consult
your telephone company or a qualified installer.
8. If the telephone company requests information on what equipment is connected to
their lines, inform them of:
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
a) The ringer equivalence number [0.0B]
b) The USOC jack required [RJ11C]
c) Facility Interface Codes (“FIC”) [METALLIC]
d) Service Order Codes (“SOC”) [9.0y]
e) The FCC Registration Number [US: UL7IS00BIPV20]
9. The REN is used to determine the number of devices that may be connected to a
telephone line. Excessive RENs on a telephone line may result in the devices not
ringing in response to an incoming call. In most but not all areas, the sum of RENs
should not exceed five (5.0). To be certain of the number of devices that may be
connected to a line, as determined by the total RENs, contact the local telephone
company. The REN for this product is part of the product identifier that has the format
US: AAAEQ##TXXXX. The digits represented by ## are the REN without a decimal
point. For this product the FCC Registration number is [US: UL7IS00BIPV20]
indicates the REN would be 0.0B.
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
CAUTION
SINCE IPV20 SERIES IP TELEPHONE EXCHANGES ARE ELECTRONIC-BASED
PRODUCTS, THE REQUIREMENTS BELOW SHOULD BE FULFILLED IN ORDER
TO UTILIZE IT WITH DESIRED PERFORMANCE:
The system covers must not be opened by unauthorized
persons in any way.
The cover of the exchange cabinet should always be kept
closed.
All the ground connections on the covers must be fixed
and checked before closing all the covers of the system.
Precautions must be taken in order to prevent any harmful
substances from leaking or spilling into the exchange in
any way.
Serious hazards may occur unless the conditions above are matched completely!
FOR PROPER OPERATION OF SYSTEM
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
Any mistake in the connections can damage your system. An authorized service
must make these connections. The information in this guide is given just as
explanatory information.
The equipment does not contain parts that can be repaired / maintained. In case
of a problem, consult authorized service.
To avoid danger of burning and electrical shock, do not expose the system to
rain or humidity.
Keep your system away from excessive dust, high temperature, humidity and
sunlight.
You can clean the exterior part of your system with a slightly humid fabric. Before
cleaning the system, remove it from mains power. Do not use any chemicals,
liquid or aerosol cleansers, flammable liquids (thinner, gasoline, etc.) for cleaning
purposes.
Do not mount your system on mobile surfaces or near radiators or heat sources.
When you want to chance the location of the system, consult authorized service.
When you need to carry your system, use its own box.
Any external signal that will be used for testing your system or similar purposes
can damage your telephone equipment or your system.
Have your system installed in a ventilated place which is not exposed to direct
sunlight with a temperature of 5 - 40 Co and without any humidity. There should
be practical illumination within the room. The system must not be exposed to
dust, vibration, and any oil - water effect.
High frequency devices (welding machines, PC – telex and similar office tools, air
conditioners, televisions etc.) must be avoided as much as possible or must be at
least 3 meters away from the system.
Continuous power cut-offs will effect systems normal operation. Therefore, pay
attention to maintain proper power on your system.
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
TABLE OF CONTENTS
INTRODUCTION ......................................................................................................... 1
APPLICATIONS .......................................................................................................... 1
IP PBX FEATURES ............................................................................................ 1
EXTERNAL APPEARANCE .......................................................................... 2
PARTS LIST ON DELIVERY .............................................................................. 3
SYSTEM SETUP ......................................................................................................... 4
CONNECTION DIAGRAM .................................................................................. 4
IPV20 EXCHANGE WALL INSTALLATION: ...................................................... 5
MANAGEMENT OF THE IPV20 .................................................................................. 7
ADMINISTRATOR LOGIN .................................................................................. 7
SOFTWARE STRUCTURE ......................................................................................... 8
THE IPV20'S OPERATING SYSTEM ................................................................. 8
IP EXTENSION AND LINE SERVICES .............................................................. 9
LICENSING FEATURES .................................................................................. 11
NUMBERING PLAN ......................................................................................... 11
WEB SERVER – COMSER .............................................................................. 12
SPECIFICATIONS ..................................................................................................... 14
GENERAL SPECIFICATIONS ......................................................................... 14
CONNECTIONS ............................................................................................... 14
ANALOG CHARACTERISTICS ........................................................................ 15
IP CHARACTERISTICS ................................................................................... 16
TONE CADENCE & FREQUENCIES* ............................................................. 17
RING CADENCES* .......................................................................................... 18
DTMF TONES: ................................................................................................. 18
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
INTRODUCTION
IPV20 – IP PBX FOR SMALL OFFICES AND HOME OFFICES
IPV20 — A hybrid IP-PBX for small offices, home offices and remote offices.
The IPV20 also offers a hybrid solution option (combining VOIP application with
standard telecom equipment) for those companies not yet ready for a standalone
VoIP (IP Telephony) solution.
APPLICATIONS
IP PBX FEATURES
Auto-Configuration Call Transfer
IVR (Interactive Voice Response) Call Waiting
Blind Transfer CID
Call Record (CDR) Search Do Not Disturb (DND)
Call Forwarding Voice Message
Call Parking Group Ringing
Call Pickup CID Routing
Call Recording 4-Person Conference Calling
Inbound/Outbound Call Routing MRI(IP-PBX Recording Interface)
DISA
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
EXTERNAL APPEARANCE
The Front Face
Nr. Description
1. Green Light Indicates a normal connection to the power cable.
2. Green Light Indicates that the server system is running properly.
3. Green Light Indicates that the Internet WAN is in use.
4. Green Light Indicates that the Internet LAN is in use.
5. Red light An indicator for the FXO port
A flashing red light indicates that the FXO port is not connected to a line.
A slow red and green blinking light indicates an incoming call on the FXO port.
A quickly flashing red and green light indicates that the FXO port is in use.
A green light is an indicator for the FXS port.
A blinking green and red light indicates an incoming call on the FXS port.
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
A quickly flashing green and red light indicates that a call is ongoing on the FXS
port.
Back
LAN-WAN: Ethernet (RJ45)
1-8: Line Ports (RJ11)
9-16: Analog Telephone Ports (RJ11)
PARTS LIST ON DELIVERY
· IPV20 server unit
· Power source
· Internet cable
· Some telephone cables [RJ-11]
Note: Please contact your reseller if any of the above-listed components are
damaged or missing.
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
SYSTEM SETUP
CONNECTION DIAGRAM
Connecting the Ethernet Cable
The IPV20 has two (IPV20’de ilki adet port var. IPV10’da 1 adet port var) (10/100M)
Ethernet ports with accompanying RJ45 interfaces and LEDs. In addition to the
transfer of voice data, the device also communicates data related to Ethernet port
management, maintenance and operation.
Connect the Ethernet cable to the IPV20's Ethernet port, and connect the other end of
the cable to a hub, switch, router, LAN or WAN. After connecting, check the LED light:
a yellow light indicates that the connection is in progress; a green light indicates that
the port is running.
Connection to an Electric Socket
Requirements of the IPV20 system:
AC Input: 100~240V
DC Output: 12V, 3 A
Please take the following step when connecting the device to an electric socket.
1.Insert one end of the power cable into the input port on the back panel of IPV20.
Insert the other end into a 220V electric socket.
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
2. After connecting the Power, please check if the Power LED on the front panel lights
up. A lit LED indicates that the power is properly connected. If the LED does not light
up then please repeat all of the steps, from step one to step three.
IPV20 EXCHANGE WALL INSTALLATION:
Take the following steps to install the box to a wall:
1. Use IPV20 Exchange "Installation Illustration" to determine the location of
the terminal on the wall and to mark the location of the holes. The length of the
power adapter cable must be considered when determining installation location.
Installation Template
2. Insert pegs inside the holes drilled on the wall and install the screws into
these pegs so that 4 mm from the head side of the screws will remain
unscrewed.
3. Figure above device hang on the wall by hitting hanger holes and screw
heads.
Note: There is no need to remove the electronic card from the box prior to installing
the box on the wall. However, should it be necessary to remove the card from the box
for any reason whatsoever, five screws illustrated in Figure must be removed in order
to remove the card.
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
MANAGEMENT OF THE IPV20
ADMINISTRATOR LOGIN
An IPV20 system has many application properties. These services have been
designed in a flexible manner to order to satisfy all users' various expectations. All
services can be programmed via the IPV20's administration interface: ComSer. To
do this, double click on your PC's Internet browser icon to open a browser page, and
then enter the IP address of the IPV20 into the address bar.
For the first-time configuration of an IPV20, please use the IPV20's default login
details to log in
IP Address: http://192.168.180.18:8000
User Name: admin
Password: karel
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
SOFTWARE STRUCTURE
THE IPV20'S OPERATING SYSTEM
The operating system of the IPV20 IP PBX is Linux. The main software has been
designed based on UML, the most common object oriented software design
discipline. All the Linux-based software development was undertaken using the
Rapsody (I-logics) Suite.
Since Linux is an open-source operating system, applications such as Unified
Messaging and Call Center tools that have been developed for the same environment
can easily be adapted for use with a PBX.
The software has been designed to be CSTA-XML(ECMA) / CCXML (W3C)
compatible, in order to ensure full “computer-PBX” integration. Thus, any computer
applications compatible with these interfaces can be directly integrated with the PBX.
Similarly, due to the Linux infrastructure, it is possible to integrate and use different
applications on the system.
The IPV20's main software is saved as a compressed Flash image in the memory
accompanying the CPU module. When the PBX initially starts running, it first loads
the operating system into RAM memory from the compressed Flash memory, runs it,
and then the system switches to its normal operating mode.
The system does not run any special software on its capacity expansion cards; all
operations are controlled by the main processor. This results in a simpler and more
reliable structure, perfect for a small or medium sized system.
System software updates do not require any changing of chips. There are two options
when considering updates to system software:
1) The version of the software may be changed along with replacing the CPU
module. However, this is a pretty expensive approach.
2) Alternatively, software can be uploaded remotely without interfering with the
system's normal operation by simply connecting to an IP network. This is
cheaper, much more reliable and faster as it does not require any stopping of the
system. So this method is recommended.
IMPORTANT
The system software can be updated while the PBX continues to run.
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
The IPV20's software has been designed to satisfy a broad range of customer
requirements. Looking at system software, there are three categories:
1. User features,
2. Operator features,
3. Programs.
User features are those which any user can access through any type of phone.
Operator features are those software abilities that can only be utilized by those
extensions authorized to do so by the system.
In general, programming of the system is undertaken via remote access, from a PC's
web browser to the Web Server on the IPV20 (ComSer). Most of the parameters that
control the system's operation can be changed by programming.
In addition, some operator-level programs can also be accessed by those extensions
that have been provided with authorization to login into the programming mode via
dialing the appropriate code on the telephone.
Initially, access to the system's Web server is provided to those users defined as
'operators' or as 'system authorities'.
IP EXTENSION AND LINE SERVICES
One of the most important features of the IPV20 IP Telephone PBX is the provision of
integrated support for IP Extensions and IP Lines.
A maximum of 40 IP Extensions and 8 VoIP channels with associated IP Lines are
supported by an IPV20 PBX's integrated IP Extension and Line support.
IP extensions run the SIP protocol. IP Lines support both the H323 and SIP protocols.
(Support for both the H323 and the SIP protocol are supplied by a single MGW card)
The parametric programming of IP extensions and IP lines on the system is
undertaken via an interface to ComSer, similar to the programming of the other TDM
channels of the PBX.
The System's number of Gateway channels is a maximum of 8. That is, 8 analog and
IP channels can make simultaneous calls.
IP extensions registered to the PBX can use all standard SIP services, but they
cannot use all of the services available to the PBX's other analog/digital extensions.
They can only use specific PBX services. Some of the services that can be used by
IP extensions are listed here:
- Common Pool Records / Call in common pool
- Call Parking
- Call Pick Up / Group Call Pick Up
- Call Forwarding
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
- Conference
- Call Back
- Authorization Transfer
- CLIR Activation
- CLOR Activation
- Executive-Secretary Feature
- Leaving a Message to an Extension
For further information on all the services supported by IP Extensions, please refer to
the IPV20 Series User's Guide.
An IPV20 extension supports IP extensions via its IP services. Thus IP extensions
can be supported behind ADSL. To enable this the system supplies NAT/STUN
support.
During IP connections to a VPN, the IP extension applications act as if they were
connected locally. IP port routing is not required.
IP Lines can be selected so as to support the H323 and SIP protocols. The system
can include lines supporting the SIP and H323 protocols at the same time.
IP Lines can be used to build IP connections (Tie-Lines) between PBX's. They can
also be used to connect to a private operator's IP lines or to Proxy
Servers/GateKeepers throughout the company.
After IP Lines have been defined via the ComSer interface, line groups are similarly
created for the other lines groups, the routes are defined and then put into service.
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
LICENSING FEATURES
The use of IP extensions and lines on an IPV20 IP Telephone PBX requires private
licenses. In addition, further features can be utilized via these special licenses. The
features that require licenses are listed in the following list:
1. Web-CM+Net-Console or Net-CM+Net-Console License
2. Private IP Extension License
3. SIP Extension License
4. SIP&H.323 Line License
5. VoIP Encrypted&Unencrypted Channel License
6. Instant Messaging License
7. EVM Channel License
On a IPV20 IP Telephone PBX, by default:
Twelve (12) SIP PBX's + Two (2) Private IP Extensions + Two (2) SIP Lines + Four
(4) VoIP Channel License are supplied.
Licensing features are enabled via a security code embedded in the IPV20's
mainboard.
Please contact your authorized service shop for License Keys. License keys you
request and purchase can be entered into the License Settings field on the ComSer
interface.
NUMBERING PLAN
When the installation of a IPV20 IP Telephone PBX of the required capacity is
completed and the device is initially run, it automatically scans its configuration and
assigns a numbering structure which conforms to the configuration of the lines, as
listed.
The IPV20's numbering is done dynamically, but in accordance with its configuration.
Extensions with that already have values assigned to them are added onto the
existing numbering plan as new cards are added to the system. These extensions'
numbers are then assigned, starting from the highest number of the existing plan.
Initially, the numbering plan is assigned in three steps, beginning at 101 and then
incrementing by one for each extension. That is, the existing plan's numbers are
extended, one by one, as each extension or line card is added to the system.
If required, the PBX's numbering plan and code structure can be modified as desired,
due to its flexible numbering. The desired numbering plan can be created in a
maximum of eight steps.
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
WEB SERVER – COMSER
The IPV20's maintenance, programming and monitoring actions can all be realized, in
real-time, from any remote PC on the same network as the IPV20.
To do this, a WEB server, ComSer, has been designed for the IPV20, thus eliminating
the need for any special software while, at the same time, allowing access to the PBX
from any web browser.
Thus each user can utilize the PBX's functionality from his or her computer, given the
appropriate authorization. Moreover, because the web server is an integrated
component of the IPV20's operating system, there will not be any incompatibility
between application versions.
Backups can be saved on a local computer via the ComSer web server. Previously,
saved backups had to be restored to the system via the "Database Converter".
However, older configurations can still be used with these newer versions.
All of the following operations can be undertaken via the integrated web server:
1) PBX programming
a) Programming all of the interface parameters
b) The setting of all extension and line parameters
c) The programming of general PBX parameters
d) The programming of all administration and routing parameters
2) System updates
a) Updating server settings
b) The display of the current software versions
c) Automatic software updates
d) Remote access to system settings, for export or recording
e) The changing of IP addresses
3) Call record details. (Net-CM or Web-CM will be used here):
a) Transfer of call record details to a local computer
b) Pricing
c) Filtering, archiving and the compiling of statistical data
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
The following window of the ComSer programming interface appears:
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
SPECIFICATIONS
GENERAL SPECIFICATIONS
1. Capacity (TDM)
Capacity (IP)
2. Testing - Blackfin DSP
3. Switching - PCM/TDM A rule
4. Power - 230 VAC – 50 Hz.
5. Dialing - Dual Tone Multi Frequency Dialing (DTMF)
6. Dialing Conversions - IP (RFC283 info)
7. Speech Channels
(TDM)
Speech Channels (IP)
8. MF Receiver Capacity - 12
9. MF Producer Capacity - 4
10. CRL Capacity - Approximately 2000 Calls
- 16 lines on each individual system
- A maximum of . 40 IP lines
- IP
- Mainboard + CPU module Stand-by Power
Consumption: 1W
- EXP20 Stand-by Power Consumption: 0.5W
- Max. Power Consumption: 20W
140 msec (analog lines)
- Digital (info)
- DTMF – DP
- RFC283 – info elements
- 32 x 32
- 8 channels
CONNECTIONS
1. Connectors - Lines and Extensions: RJ11 type
- Ethernet: RJ45 type
2. External Connections - Standard Telephones: 2-wire
- PC: 4-wire (ethernet)
3. CRL
(Call Record Listing)
- WEB-CM
- Net-CM
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
ANALOG CHARACTERISTICS
1. Analog Extension
Interface
2. Maximum Analog Line
Cycle Resistance
3. Analog Line Interface
4. Analog Extension
Supply Voltage
5. Wait Time between
Two Consecutive Dials
by the Auto-dialer
6. Cross-Talk Attenuation - Better than 70 dB
7. Maximum number of
telephone sets per
extension
8. Auto attendant
message capacity
9. Total Voice Message
capacity
10. Ringer Voltage - 65 V rms, 25-30 Hz
11. Minimum Detectable
Ringer Level
12. Hook flash Duration - 100 – 600 msec*
13. Environmental
Conditions:
14. Dimensions - 280x175x33mm
15. Weight - 700 g
16. Maintenance - Embedded Self Test / Solution
- Station Loop Resistance: Maximum 2500
Ohm, including telephone set
- 2.2 kOhm
- Analog line with Cycle Initiation through
DTMF Signaling
- 12/16 KHz Pulse Price Signal Detection
- Polarity Reversal Detection
- -48 VDC
- 175± ~ 5 msn
- 2 Telephone Sets (for analog extensions)
- 10 minutes
- 14 hours
- 35 V rms, 25-30 Hz
- 0C0 – 40C0 , Humidity 10%–80% non-
condensing
- Local / Remote Programming
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
IP CHARACTERISTICS
1. Voice compression
(Codec support)
2. Echo removal - period - 16 msec EC (conforms to the G.168
3. In-band support - Yes
4. Out-of-band - RF2833 support
5. Telephone - Standard SIP softphone
6. Web server support - Yes
7. System
Management/Monitoring
8. SNTP - Yes
9. NAT support - Yes
10. QoS support - Yes
11. Jitter buffer - Yes
12. sRTP support - Yes
13. CNG support - Yes
14. VAD support - Yes
15. DNS support - Yes
16. STUN support - Yes
- G711 a/u-law
- G729A/B
- G723.1
- iLBC
standards)
- INFO support
- IP phones
- HTTP, Telnet, TFTP
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
TONE CADENCE & FREQUENCIES*
1. Dial Tone (500 Hz.) Continuous
2. Ring back Tone (500 Hz.) 1500 msec on, 3500 msec off
3. Busy Tone (500 Hz.) 500 msec on, 500 msec off
4. DISA Dial Tone (500 Hz.) 300 msec on, 300 msec off, 300 msec on,
300 msec off, 300 msec on, 2000 msec off
5. Dial Tone with Message
Waiting (500 Hz.)
6. Error Tone (500 Hz.) 300 msec on, 300 msec off, 300 msec on,
7. Dial Tone (Reminder
Active)
8. Special Dial Tone (250
Hz.)
9. Overflow Tone (2000
Hz.)
10. Warning Tone (250 Hz) 20 msec on, 1500 msec off
* Some tone and cadence values can be modified via the ComSer programming
interface.
300 msec on, 300 msec off, 300 msec on,
300 msec off, 300 msec on, 2000 msec off
300 msec off, 300 msec on, 300 msec off,
700 msec on, 300 msec off
1000 msec 500 Hz., 1000 msec 250 Hz.
Continuous
700 msec on, 200 msec off
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IPV20 TECHNICAL REFERENCE & INSTALLATION GUIDE
RING CADENCES*
1. External Call, Call Back,
Reminder/Wake Up Calls
2. Internal Call 400 msec on, 350 msec off, 400 msec on,
*These values can be changed via the programming interface.
1500 msec on, 3500 msec off
3500 msec off
DTMF TONES:
High Frequency Group (- 7 dBm)
1209 Hz 1336 Hz 1477 Hz
Low 697 Hz 1 2 3
Frequency 770 Hz 4 5 6
Assembly 852 Hz 7 8 9
( - 9 dBm) 941 Hz * 0 #
The Nominal Frequencies of the IPV20 may deviate, by ± 2.5 %, from the values
listed above.
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