I am trying to connect a 7970 to a Call Manager running on a UC520 over the Internet using public IPs. I have opened the necessary ports on the WAN side of the UC520. I am now setting up the public IPs manually on the 7970. However it seems that the Call Manager IP cannot be manually set. The phone is picking up the internal IP for the Call Manager. I am not sure how this is happening since it is not getting DHCP from the UC520. Maybe the tftp? Anyhow, how can I manually setup the Call manager IP on the phone?
Not really. Also consider that if the phone is behind NAT of a cheapo modem/router, you will have one-way voice.
I hope someday Cisco will realize that phones must be able to do HTTP-based VPNs by themselves. Other vendors do that already and that makes very easy to connect remote phones no matter where they are.
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...