My branch office's using a NEC PBX E1 R2 signaling connect to Cisco 2811 and through MPLS VPN communicate with central site.The central site has a NEC PBX too,but it using E&M signaling.when branch send fax to central site the session always failure, and the fax machine promt "communication error".i tryed cisco fax relay,T38 and passthrough,and no vad,no echo canceling enable Command, use G.711 codec etc.,it also dons't work.Please help me.
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...