Connection between Cisco Router and Ericsson BP250 Using PRI
We are connecting an IP Telephony system into an Ericsson BP250 via a 1760 router with a PRI interface. We have successfully connected the systems together physically - clocks are OK and Framing is OK. We can make a call from the IP Telephony system into the PABX. The call is correctly delivered to the PABX and the handset rings and a voice path established. There are no issues apparent from reading the Q.921 and Q.931 debugs.
The problem I have is that when the PABX is placing a call to the router. The debug of these calls show that dialling the access code for the tie-line results in a CALL SETUP message with no digits. The router just gives dial tone to the caller, who then tries to dial the number of the required extension sending the DTMF tones, but of course the router cannot interpret them.
The PABX guys seem to be having trouble understanding how to configure the BP250 to send digits in the CALL SETUP request.
Has anyone had experience in working with the BP250?
I should add that the problem would seem to be peculiar to that box and the way it is configured as we have a number of other successful ISDN and QSIG implemetations to Ericsson systems but these are connecting to MD110 switches.
Re: Connection between Cisco Router and Ericsson BP250 Using PRI
thanks for the tips. We have overlap-receiving on. It does not matter however, as there are no digits being sent by the PABX. (traces show only the CALL SETUP. there are no subsequent INFORMATION ffarmes that may be carrying digits)
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...