This is the first edition of the Ericsson MD110 CAS EL7 TCP/IP VM Integration Technical Note.
Information in this document applies to CallXpress software Version 5.31 or later, or CallXpress Enterprise
software Version 5.31 or later.
This document was produced by the CTI Software Group Technical Communications Department.
AVT Corporation reserves the right to revise this publication and to make changes from time to time in the
content hereof without obligation of AVT Corporation to notify any person of such revisions or changes.
AVT Corporation exercises care in researching other manufacturers’ specifications but disclaims all
responsibility for their accuracy. All specifications shown here are subject to change without notice.
Trademarks
AVT, the AVT logo, CallServer, CallXpress, and PhoneXpress are registered trademarks of
AVT Corporation.
All other products, brand names, or companies mentioned in this document may be trademarks or registered
trademarks of their respective companies.
AVT Corporation
CTI Software Group
P.O. Box 97025
Kirkland, Washington 98083
(425) 820-6000
http://www.avtc.com
This Integration Technical Note (ITN) is written for dealers who are experienced
with CallXpress
®
and who are familiar with CallXpress procedures and terminology.
It also assumes that you are familiar with the features and programming of the
Ericsson MD110 telephone system.
This document describes how to integrate CallXpress with an Ericsson MD110
telephone system, using an E1 CAS EL7 interface in conjunction with the MD110
Voice Mail TCP/IP integration. This integration is an outband integration. The E1
CAS EL7 interface is a digital 2.048Mb 32-channel interface that can provide up to
30 CAS (channel associated signaling) voice mail ports to CallXpress per E1 link.
The MD110 E1 CAS connection is established at the CallXpress telephony server by
means of an Aculabäplc High Capacity Digital Access card. The Aculab card is the
E1 interface between the MD110 and the Dialogic card(s) in the CallXpress
telephony server. DTMF signaling and voice communications are performed over
the established E1 link between CallXpress and the MD110. The MD110 Voice
Mail interface is an Ethernet network connection that uses the TCP/IP protocol to
communicate between the MD110 and CallXpress. Calling and called party
information is sent to CallXpress via TCP/IP over the network connection at the
same time that a call is sent to a CAS channel. The data is matched with the ringing
channel and CallXpress answers with the appropriate dialog. Message Waiting
Indicator (MWI) operation is also performed via TCP/IP over the
network connection.
Refer to the Ericsson Extra Facility Voice Mail, VM description and the
Interworking Description, CAS extension, EL7 Interface to Voice Mail system for
complete details.
Use this document in conjunction with CallXpress installation guides, administration
guides and online help.
Known limitations or conditions within the telephone system and CallXpress that
affect the integration performance are listed here. General recommendations are
provided when ways to avoid these limitations exist.
•The MD110 voice mail port number of each CAS EL7 extension must be assigned
correctly to each integrated CallXpress port. The integration will not function if
these entries are incorrect. The voice mail port numbers and format (POFMT)
are programmable parameters and are defined during the initiation of the voice
mail port of the MD110.
•Program the instrument category (ICAT) of the CAS EL7 extensions that will
serve CallXpress for enhanced global tones and assign them as voice mail ports.
•The MD110 requires a static TCP/IP address. It cannot be assigned a lease
through a DHCP server. If the customer site is using a DHCP server, a
reservation must be made for the MD110.
•Set the traffic matrix (TCMAP) and TRAF parameter of the extension category
to restrict voice mail ports from calling other voice mail ports. This allows a Ttype supervised transfer to take place for call screening applications without
having to remove diversion programming from the subscriber telephone.
•The use of traffic restricted voice mail ports is not compatible with blind
transfers. We recommend that you use the monitor transfer type unless the
application requires a t-type supervised transfer..
•If the malicious call trace feature of the MD110 is enabled on the voice mail
ports, no disconnect packet will be sent to CallXpress from the NIU port of the
MD110.
•When using reason code diversions from subscriber telephones, diverted calls
will always go to the common diversion position. If CallXpress is chosen as the
common diversion position (CDCOI), calls will always be diverted there, even if
individual diversions (CDINI) have been programmed to divert calls elsewhere.
•Station numbers cannot have a 0 as the leading digit. Non-numeric
DTMF tones cannot be used as any character in a station number. The
maximum length of a station number is six digits.