I wonder if anyone could give me some light regarding the following
In one site I have a 2811 and in the other site I have a 2811 with a PIX506E.
Both routers are running CallManager Express with IOS versions:
The site to site VPN is up and working. I can do a
ping 192.168.1.1 source 192.168.0.2
and get 4 replies back.
Also, I can place any calls, from any of the two branches ok. It is only when I try to phone an extension number of the other branch that I have problems (i.e. 2106). The phone rings, and even recognises who I am phoning on the other branch but when the other person picks up the phone I can't hear them and they can't hear me.
I have set the dial-peer to send the traffic accross the VPN on both routers. ie.:
1. you can call from branch to main site, you hear each other both end, right??
2. you can call from branch to branch, but no audio at all, right??
If yes... then you see the url i give you, that might cause your problem. PIX version 7.0 improves support for spoke-to-spoke VPN communications as it provides the ability for encrypted traffic to enter and leave the same interface.
I can phone from either branch to the main (outside) number of that branch.
i.e. from London I can phone Manchester on 01618348243......
However, I can not phone Manchester directly using an extension number
i.e. From London, I want to phone Peter Smith in Manchester using his extension 2106 (this is the extension of Peter in Manchester)
When I phone Peter's extension, his phone in Manchester ring's 4 or 5 times, my phone in London recognises that I am phoning Peter in Manchester and it displays Peter's name on the screen, the phone icon even changes to off-hook when Peter picks up the phone......however, he can't hear me and I can't hear him
The topology is as follows:
London Router --> Manchester PIX --> Manchester router
from Manchester's router I can ping London's FA interface doing ping 192.168.1.1
However, from London's router, I can't ping Manchester router FA interface 192.168.0.2
unless I do ping 192.168.0.2 source 192.168.1.1
Both Manchester and London are running CallManager Express
It seems to me that the routers are able to establish the connection using skinny but then the IP phones are not able to communicate/send over the RTP traffic and that's why we can't hear each other??
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