VoIP over Cisco VPN

[jmcgregor]

Can anybody help out there? I am trying to get Avaya iPhone Manager Pro working over a VPN and it seems that the bandwidth is the only thing stopping it from working. Im using VPN Client to PIX515 v6.3.4 and the G729A codec. I have been able to use it briefly so I know it's not a fixup problem on H323, but most of the time I am unable to get the "softphone" working. The Phone switch is an Avaya IP403 and QOS is an issue I will worry about once I get it working. I intend to set up a site to site VPN using 1MB SDSL at one site and a 2Mbps leased line at the main site. The problem is that I cant get it to work over the VPN and I am now considering the expensive option of a site to site leased line. My intention was to use a Cisco 828 at the remote site. I have a 3640 in front of the Pix and a 6509 switch plus an Avaya Voice Priority processor at the main site.
Any help greatly appreciated!

 

[BuckWeet]

what do you mean "working"

does it connect, and login okay? or what?

you have a Nat 0 setup for the subnet on the IP Office, to the vpn subnet?

 

[jmcgregor]

The VPN connects fine and I can ping the IP Office switch. But Voicemail Pro fails to respond. I have tested it over analog at 33kbps and it all works fine so the problem must be firewall related. I have a Nat 0 rule for the VPN pool addresses.