One thing to be mindful of is QoS with GRE tunnels. QoS will be kicked off when the tx-ring of an interface is full and packets will be dropped when the interface is congested.
These two attributes aren't directly correlated with a GRE tunnel, so it's best to do a hierarchical shaper. This will limit the GRE to a bandwidth value and won't oversubscribe the WAN.
match protocol rtp audio
match protocol skinny
shape average 1544000
interface tunnel 1
service-policy out shaper-parent
For your one way voice problems you need to make sure that each of your sites have unique addressing space. If they have overlapping address space you're going to run into problems when those phones want to talk to each other.
Otherwise, every site is going to need reachability from phone-to-phone at each site. If you pull up the phone webpage during a call with one-way audio you'll see the address it's trying to connect to in the stream statistics.
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...