I have a Sip connection between a Cisco 2811 and a AudioCodes (Carrius) system. Call can be completed in both directions without any issues. Our issue is faxing. A fax will complete fine if the recieving fax is not set for "auto receive". From what I can tell the RTP stream is established and then the T38 negotiation occurs. When the fax is set for auto this does not occur. Has anyone experienced this issue?....Is there a way to "delay" the T38 setup to allow for the g711ulaw call to be established first...? Any help would be appreciated..
After this, you need to delete your H.323 gateway configuration from Cisco CallManager and configure this as a Non-Gatekeeper controlled InterCluster Trunk.
When this is done, the Cisco CallManager seems to respond with the H.245 TCS right away and the call is established.
Note: In 4.1.3, you have the option to configure Cisco CallManager to send the TCS right away and not wait to receive it but there is no check box for this in Cisco CallManager 3.3.3. This is why it works with the Trunk, whose default behavior is to send the TCS right away.
Refer to T.38 Fax Relay for Voice over IP H.323 for more information.
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...