I have cisco ccm 5.1 in my office. i have nokia e61i phone i configuared my phone over the sip and its working really fine. in my internal network but when i leave my network i try from another network or thorough 3G i am able to register on my cisco CMM thorough public IP. and i am also able to make calls but the thing is the second party not able to hear me. can anyone suggest me how i move forward
I would strongly recommend against exposing your UC Manager server to the outside world directly. This is a significant security risk.
If you are absolutely determined to do this, you will need to do protocol inspection of the RTP traffic on your firewall as RTP dynamically assigns ports. This is in addition to inspecting SCCP or SIP.
You should be doing this inside of a protected tunnel. Cisco offers the Phone Proxy feature on their ASA products although I'm not sure this is compatible with third-party SIP devices. Otherwise, you should VPN in and then place the call.
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...