Philips KX-NCP500, KX-NCP1000 User Manual

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Programming Manual for Virtual SIP Trunk Card

Pure IP-PBX

Model No. KX-NCP500/KX-NCP1000

Thank you for purchasing a Panasonic Pure IP-PBX.

Please read this manual carefully before using this product and save this manual for future use.

KX-NCP500/KX-NCP1000: PBMPR Software File Version 1.0000 or later

In this manual, the suffix of each model number (e.g., KX-NCP500NE) is omitted unless necessary.

Table of Contents

1 Overview ...................................................................................................		3
1.1	Information about IP Telephony Service ........................................................................	4
1.2	Important Notice for Subscription and Installation .......................................................	7
1.2.1	Port Requirements ...........................................................................................................	7
1.2.2	Firewall Requirements ......................................................................................................	7
1.2.3	Bandwidth Requirements .................................................................................................	8
1.3	Specifications ....................................................................................................................	9

2 Preparations for PC Programming .......................................................		11
2.1	Maintenance Console Operating Instructions ..............................................................	12
2.1.1	Installing and Starting the Maintenance Console ...........................................................	12
2.2	Installing the V-SIPGW16 Card to the PBX ...................................................................	16

3 Programming the V-SIPGW16 Card ......................................................		17
3.1	Programming the V-SIPGW16 Card—Port Property ....................................................	18
3.1.1	Main ................................................................................................................................	19
3.1.2	Account ..........................................................................................................................	20
3.1.3	Register ..........................................................................................................................	21
3.1.4	NAT ................................................................................................................................	23
3.1.5	Option .............................................................................................................................	24
3.1.6	Calling Party ...................................................................................................................	25
3.1.7	Called Party ....................................................................................................................	27
3.1.8	Voice/FAX ......................................................................................................................	27
3.1.9	RTP/RTCP .....................................................................................................................	30
3.1.10	T.38 ................................................................................................................................	31
3.1.11	T.38 Option .....................................................................................................................	32
3.1.12	DSP ................................................................................................................................	34
3.1.13	Supplementary Service ..................................................................................................	35
3.2	Programming the V-SIPGW16 Card—Card Property ...................................................	37
3.2.1	Card Property .................................................................................................................	37
3.3	Programming the V-SIPGW16 Card—Shelf Property ..................................................	40
3.3.1	Main ................................................................................................................................	40
3.3.2	Timer ..............................................................................................................................	42

4 Maintenance ...........................................................................................		45
4.1	Configuration Management ............................................................................................	46
4.1.1	Importing/Exporting V-SIPGW16 Provider Profiles ........................................................	46
4.1.2	V-SIPGW16 Protocol Trace ...........................................................................................	47
Index	..............................................................................................................	49

2Programming Manual for Virtual SIP Trunk Card

Section 1

Overview

This section provides an overview of the V-SIPGW16 card.

Programming Manual for Virtual SIP Trunk Card	3

1.1 Information about IP Telephony Service

The Virtual 16-Channel SIP Trunk Card (V-SIPGW16) is a virtual trunk card which is designed to be easily integrated into an Internet Telephony Service provided by an ITSP (Internet Telephony Service Provider).

As a major SIP Provider, an ITSP provides its telephony service partly through the conventional telephone network (e.g., ISDN and Mobile), which is fee-based. An ISP (Internet Service Provider), another major SIP Provider, does not provide telephone connection itself. However, providing its users with Internet access, an ISP provides voice communication on the Internet for free. In this way, with VoIP technology based on the SIP protocol, the cost of voice communication can be much cheaper than conventional telephone networks.

The maximum number of V-SIPGW16 cards that can be installed in the virtual trunk slots of the PBX is one for the KX-NCP500 and two for the KX-NCP1000.

The channel capacity of the card allows KX-NCP500 users to connect to up to 8 different ISP/ITSPs and allows KX-NCP1000 users to connect to up to 32 different ISP/ITSPs.

V-SIPGW16 Connection Outline

The following diagram illustrates a simple VoIP network connecting the V-SIPGW16 card to the Internet.

WAN (Wide Area Network)

Internet

ITSP

Local

Telephone

ISP

	LAN	Router
	(Local Area Network)	Router
	(Local Area Network)

Switching

Hub

IP-PT

PBX with

V-SIPGW16 Card

Requirements for Internet Telephony Service

•You need to subscribe with an ISP for Internet connection.

•You need to subscribe with an ITSP for telephone connection. The ISP and ITSP may be part of the same company.

4Programming Manual for Virtual SIP Trunk Card

1.1 Information about IP Telephony Service

Note

•VoIP communication using the V-SIPGW16 card may deteriorate depending on the ITSP being used.

•VoIP communication using the V-SIPGW16 card may deteriorate depending on the network conditions.

DNS (Domain Name System)

A DNS server normally provides the name resolution service for your computer. As domain names are alphabetic, they are easier to remember. The Internet, however, is based on IP addresses. Therefore, every time a domain name is used, a DNS server must translate the name into the corresponding IP address, and vice versa. For example, the domain name www.example.com may be translated to 192.0.34.166. If one DNS server does not know how to translate a particular domain name, it asks another one, and so on, until the correct IP address is returned.

NAT (Network Address Translation) Traversal

When NAT/NAPT (Network Address Port Translation) is enabled, the router translates a local IP address from the PBX into a global IP address. However, the router with NAT enabled does not translate local IP addresses stored in SIP messages into global IP addresses.

Therefore, the address which the SIP Server recognises as the destination IP address to reply to is actually the local IP address of the PBX, not the global IP address of the router. Therefore, if the SIP server receives a SIP message from the PBX and sends a message back to the PBX using the address stored in the SIP message, the packet information will not reach the PBX.

STUN Servers function to solve the global IP address problem under certain NAT conditions, for example, in case of full duplex communication. A STUN Server, used alongside the SIP Server, finds out the global IP address of the router with NAT enabled. With the STUN feature enabled, the packet information sent by the SIP Server is able to "traverse" NAT and reach the PBX.

The settings can be configured to specify whether to enable the NAT Traversal feature for each ISP/ITSP. In addition, the NAT Traversal method can be selected from "STUN" and "Fixed IP Address" (refer to

3.3.1 Main, NAT Traversal).

The V-SIPGW16 card may require the NAT Traversal feature to be enabled to connect to the WAN via a router. The following diagram illustrates how VoIP communication is enabled between the V-SIPGW16 card and the SIP Server (SIP Receiver) via a router with NAT enabled.

Programming Manual for Virtual SIP Trunk Card	5

1.1 Information about IP Telephony Service

WAN

Internet
STUN		Fixed IP Address
STUN	SIP	SIP
Server	Server	Server

ISP/ITSP

LAN

Router

(NAT enabled)

Switching

Hub

IP-PT

PBX with

V-SIPGW16 Card

Note

•If an ISP/ITSP uses a device such as SBC (Session Border Controller), you may not have to enable the NAT Traversal feature.

•A STUN Server is supplied by an ISP/ITSP, and not included with the PBX.

6Programming Manual for Virtual SIP Trunk Card

1.2.2 Firewall Requirements

1.2 Important Notice for Subscription and Installation

1.2.1 Port Requirements

Required Ports for Each Channel

When configuring a router with NAT enabled, you need to secure a certain number of ports for each SIP and RTP/RTCP channel. For RTP/RTCP, the number of required ports is double the number of activated SIP trunks (Ch). For SIP signalling, the number of required ports is always one regardless of the number of activated SIP trunks (Ch).

If 4 SIP trunk channels are activated, you need the following number of ports:

Protocol Type	Required Port

RTP	4

RTCP	4

SIP	1

Total	9

1.2.2 Firewall Requirements

If the VoIP network contains a firewall, you must configure the firewall to allow VoIP packets to pass through certain ports of the ports listed below without being blocked by filtering. The ports for which you need to configure the firewall may vary depending on the network conditions.

For more information, consult your network administrator.

[IP Packets to V-SIPGW16 Card]

Port	TCP/UDP	Default Port No.

SIP Client Port	UDP	35060

STUN Client Port	UDP	33478

NAT Voice (RTP) UDP Port	UDP	16000 to N

DNS (Client) Port	UDP	30053

[IP Packets from V-SIPGW16 Card]

Port	TCP/UDP	Default Port No.

SIP Server Port	UDP	5060

Registrar Server Port	UDP	5060

STUN Server Port	UDP	3478

Manual DNS Server Port	UDP	53

Programming Manual for Virtual SIP Trunk Card	7

1.2.3 Bandwidth Requirements

Router Requirements

•Port Forwarding:

It may be necessary to set the NAT router so that it forwards the incoming packets to the IP address of the V-SIPGW16 card if all of the following conditions are met:

–the PBX uses a STUN server;

–a V-SIPGW16 card is located under a NAT router;

–incoming packets are routed to a SIP Client port or NAT Voice (RTP) UDP port indicated in the [IP Packets to V-SIPGW16 Card] table above.

•SIP-NAT Feature:

When a V-SIPGW16 card is located under a NAT router that supports the SIP-NAT feature*1, it is

recommended to disable this feature.

*1	When NAT is enabled, the router translates the IP address stored in the IP header and the port number stored in the UDP header.

	When SIP-NAT is enabled, the router also translates the IP address and port number stored in SIP messages.

1.2.3 Bandwidth Requirements

When using the V-SIPGW16 card, you must ensure that the WAN has enough bandwidth to support VoIP communications. Refer to the table below and ensure that the sum of the required bandwidth for each channel is smaller than the amount the WAN (e.g., ADSL network) can provide.

Note that the amount in the table is only a guide. Subscribe to a network that has enough bandwidth. If the amount of bandwidth required for VoIP communications is larger than what the network can accommodate, speech quality will be compromised.

Required Bandwidth for Each Channel

The required bandwidth depends on what combination of CODECs and packet sending interval is used. Keep in mind the following points about the type of CODEC and packet sending interval, in terms of the speech quality:

•The speech quality of the CODECs varies as follows: G.711 (High), G.729 (Low)

•The shorter the packet sending interval, the higher the speech quality.

•The higher the speech quality the V-SIPGW16 card provides, the more bandwidth the WAN requires.

CODEC			Packet Sending Interval

	10 ms	20 ms	30 ms	40 ms	50 ms	60 ms
	10 ms	20 ms	30 ms	40 ms	50 ms	60 ms

G.711	110.4 kbps	87.2 kbps	79.5 kbps	75.6 kbps	73.3 kbps	71.7 kbps

G.729	54.4 kbps	31.2 kbps	23.5 kbps	19.6 kbps	17.3 kbps	15.7 kbps

8Programming Manual for Virtual SIP Trunk Card

1.3 Specifications

For details about the RFCs and protocols for the V-SIPGW16 card, refer to the following specifications.

Items	Specification

SIP RFCs	RFC3261 (UDP only)

	RFC3262 (PRACK)

	RFC3264 (Offer/Answer)

	RFC3311 (UPDATE)

	RFC3581 (Symmetric Response Routing/rport)

	RFC4028 (Session Timer)

CODECs	G.711 (a-law and µ-law)

	G.729A

Voice Options	Echo Cancellation (48 ms)

	Jitter Buffer (200 ms)

	VAD (Voice Activity Detection)

	PLC (Packet Loss Concealment)

DTMF Relay	Inband/Outband (RFC2833)/Outband (INFO)

Fax Relay	G.711 Inband/T.38

Protocol/Function	RTP

	RTCP

	DNS (A/SRV)

	NAT Traversal (STUN)

	QoS (ToS field setting in IP header of RTP/RTCP)

Programming Manual for Virtual SIP Trunk Card	9

1.3 Specifications

10 Programming Manual for Virtual SIP Trunk Card

Section 2 Preparations for PC Programming

This section serves as reference operating instructions when using the Maintenance Console software to programme the V-SIPGW16 card.

Programming Manual for Virtual SIP Trunk Card	11

2.1.1 Installing and Starting the Maintenance Console

2.1 Maintenance Console Operating Instructions

2.1.1 Installing and Starting the Maintenance Console

System programming, diagnosis and administration for the V-SIPGW16 card can be performed with a PC using the Maintenance Console. This section describes how to install and start the Maintenance Console.

System Requirements

Required Operating System

•Microsoft® Windows® XP or Windows Vista® Business

Minimum Hardware Requirements

•HDD: 100 MB of available hard disk space

Recommended Display Settings

•Screen resolution: XGA (1024 ´ 768)

•DPI setting: Normal size (96 DPI)

Hardware Requirements

•Make sure that the PBX, IPCMPR card, and DSP card are installed.

•Make sure that the PBX is fully connected to your PC.

Note

For details about installation, refer to "Section 3 Installation" in the Installation Manual.

Trademarks

•Microsoft, Windows and Windows Vista are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.

•All other trademarks identified herein are the property of their respective owners.

•Microsoft product screen shot(s) reprinted with permission from Microsoft Corporation.

This software uses the Source Code of RSA Data Security, Inc. described in the RFC1321 (MD5Message-Digest Algorithm).

Licence to copy and use this software is granted provided that it is identified as the "RSA Data Security, Inc. MD5 Message-Digest Algorithm" in all material mentioning or referencing this software or this function.

Licence is also granted to make and use derivative works provided that such works are identified as "derived from the RSA Data Security, Inc. MD5 Message-Digest Algorithm" in all material mentioning or referencing the derived work.

12 Programming Manual for Virtual SIP Trunk Card

2.1.1 Installing and Starting the Maintenance Console

RSA Data Security, Inc. makes no representations concerning either the merchantability of this software or the suitability of this software for any particular purpose. It is provided "as is" without express or implied warranty of any kind.

These notices must be retained in any copies of any part of this documentation and/or software.

Installing the Maintenance Console

Note

•Make sure to install and use the latest version of the Maintenance Console.

•To install or uninstall the software on a PC running Windows XP Professional, you must be logged in as a user in either the "Administrators" or "Power Users" group.

•To install or uninstall the software on a PC running Windows Vista Business, you must be logged in as a user in the "Administrators" group.

•Product specifications, including text displayed by the software, are subject to change without notice.

1.Copy the setup file of the Maintenance Console to your PC.

2.Double-click the setup file to run the installer.

3.Follow the on-screen instructions provided by the installation wizard.

Starting the Maintenance Console and Assigning the Basic Items (Quick Setup)

When you start the Maintenance Console with the Installer Level Programmer Code and connect to the PBX for the first time after initialisation (with the factory default setting), Quick Setup will launch automatically. During Quick Setup, you will set up the basic items. For details about the basic items, refer to "2.3.4 Quick Setup" in the Feature Guide.

1.Connect the PC to the PBX with an Ethernet straight cable or RS-232C cross cable.

2.Start the Maintenance Console from the Start menu.

3."Information before programming" appears.

a.Carefully read this important additional information, which includes updates to this and other manuals.

b.Click OK to close this window.

4.a. Enter the Installer Level Programmer Code (default: INSTALLER).

b.Click OK.

5.Click Connect.

6.a. Select KX-NCP500/1000 from PBX Model.

b.Select the LAN or RS-232C tab, depending on the type of PC connection with the PBX.

c.Specify the settings as required.

Note

When connecting to the PBX for the first time selecting LAN, the IP Address and Port Number must be set to 192.168.0.101 and 35300 respectively.

d.Enter the system password for installer (default: 1234).

e.Click Connect.

Programming Manual for Virtual SIP Trunk Card	13

2.1.1Installing and Starting the Maintenance Console

7.When country/area data do not match:

a.Click OK to replace the country/area data of the PBX. Replacement may take several minutes to complete.

b.Follow the procedure described in Section "3.16.1 Starting the PBX" in the Installation Manual and restart the PBX.

c.Repeat step 5 to reconnect the Maintenance Console to the PBX.

8.Follow the instructions of the Quick Setup wizard for the basic items in Quick Setup—Step 1 to 3.

9.In Quick Setup—Step 4, the IP addressing information for the IPCMPR card can be assigned automatically through a DHCP server or entered manually.

When using a DHCP server:

a.Select Enable for the DHCP Client setting.

b.Click Apply.

Note

The boxes will turn grey and the IP addresses will be assigned automatically after the PBX is reset.

When not using a DHCP server:

a.Select Disable for the DHCP Client setting.

b.In the IP Address for IPCMPR Card box, type the IP address of the IPCMPR card.*1

c.In the IP Address for VoIP-DSP box, type the IP address of the DSP16 or DSP64 card.*2

d.In the Subnet Mask box, type the subnet mask address of the network.*3

e.In the Default Gateway box, type the IP address of the default gateway.*4

f.Click Apply.

When using a DHCP server to obtain a DNS server IP address automatically:

a.Select DHCP for the DNS Server Address Method setting.

b.Click Apply.

Note

The boxes will turn grey and the IP addresses will be assigned automatically after the PBX is reset.

14 Programming Manual for Virtual SIP Trunk Card

2.1.1 Installing and Starting the Maintenance Console

When not using a DHCP server to obtain a DNS server IP address automatically:

a.Select Manual for the DNS Server Address Method setting.

b.In the Manual Preferred DNS Server IP Address box, type the IP address of the preferred DNS server.

c.In the Manual Alternate DNS Server IP Address box, type the IP address of the alternate DNS server.

d.Click Apply.

The system menu appears. You may now begin programming the PBX.

Notice

•Do not change the IP addresses of the IPCMPR and DSP cards once IP telephones are registered to the PBX using these IP addresses.

The IP telephones will not operate properly if these IP addresses are changed.

•A DHCP server must be able to use a "client identifier" option specified by RFC 2131.

•The PBX will not start properly if the IP addresses cannot be assigned automatically by the DHCP server when DHCP Client is set to Enable. In this case, you need to consult your network administrator because the DHCP server on your network may not be running or a network failure may have occurred. If the DHCP server cannot be available, change the DHCP Client setting to Disable and set fixed IP addresses, then restart the PBX.

To change the DHCP Client setting, connect the PC with an RS-232C cross cable or Ethernet straight cable. When connecting the PC with an Ethernet straight cable, make sure the PBX is disconnected from the LAN and then connect the PC with an Ethernet straight cable using 192.168.0.101 for the IP address of the IPCMPR card.

Valid IP address range: "1.0.0.0" to "223.255.255.255"

Valid subnet mask address range: "0–255.0–255.0–255.0–255" (except 0.0.0.0 and 255.255.255.255)

Valid IP address range: "1.0.0.0" to "223.255.255.255"

Programming Manual for Virtual SIP Trunk Card	15

2.2 Installing the V-SIPGW16 Card to the PBX

2.2Installing the V-SIPGW16 Card to the PBX

1.a. Under Configuration, click Slot.

b.Move the mouse pointer over the PBX image of IPCMPR Virtual Slot at the top of the screen.

c.Click Select Shelf.

2.a. Click on the name of the V-SIPGW16 card. An image of the card will be displayed.

b.Drag the image of the card to a Trunk slot and release it. The card will move into the slot space.

3.Click Yes to confirm.

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