We are running CallManager 3.3(5) and IPC 1.1.4 and 2.0.1. When we use on our local LAN it works fine. We can make/receive calls without any problems but when we dial-in to our CallManager via VPN client (4.7) and Cisco PIX (6.3) we experience one-way audio - we can hear the remote party but they can't hear us. Does anyone know of any setting we have to change on the PIX / CallManager to fix this. Have downloaded getIP.asp to resolve address translation issues but still no luck. Any help will do. Many Thanks ... Mazolla
I've had the same problem and figured it out.. It took a network sniffer to find this. The problem is a routing problem. What type of gateway is this? h.323 or Mgcp. Make sure to configure a source address for MGCP or h.323. In CM manager you point your gateway to this source address. In your PIX, make sure you add a route for the source address. Make sure you exclude from NAT. Once this is done, you should be able to hear two audio.
I have had the same problem, voice us very sensitive to NAT, and Voice and Firewalls are not really the best friends, you have to make sure the voice devices are on the same subnet ( to avoid Nat ) and if is not possible I suggest you to use a the DMZ port for you firewall and if you dont have one try forwarding the ports to device that u are having the problem.
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...