Softphone over VPN through a Cisco ASA 5510

[vaniello]

Has anyone successfully used the IP Office Softphone to make VOIP calls from a PC connected via a VPN to a Cisco ASA 5510 through Cisco's VPN client software?

The Softphone is able to login, but I am not getting any audio when I make an outbound call. I know the VOIP extension is configured correctly because it works while I am in the office (on a different PC).

If anyone has any pointers on how to get this configuration working I would appreciate it.

Thanks.

V/

 

[hasturlord]

You might check to see if the Cisco h323 fixup is on. It needs to be off of the softphone to work.

 

[vaniello]

The H323 fixup doesn't seem to be on by default on the Cisco ASA. I know it is on the PIX, since I ran into a similar problem, but as far as I can tell this isn't turned on the ASA.

 

[AAAPhoneBrad]

Most of the time no audio is H323/Port related.

 

[janni78]

If you're running your softphone on WinXP SP2 over VPN using PPTP you must uninstall "QoS Packet Scheduler" for your network settings. Just unchecking it wont do, it must be uninstalled.

 

[vaniello]

I am using WinXP SP2, but I am not using PPTP. I am using IPSec through a Cisco ASA.

V/

 

[janni78]

Are you getting any sound, like only on inbound or one-way?

 

[vaniello]

No, no sound at all. Also, inbound calls don't seem to be making it to the Softphone. Even though the Softphone doesn't give me an error I do not think the IP Office detects that the Softphone is connected.

V/

 

[janni78]

Do you have "Confirm VOIP IP Adress" checked in Preferences -> Audio Tab

 

[vaniello]

I tried it with both the Confirm VOIP IP address option check and unchecked. Both didn't work.

V/

 

[MrIPO]

Does the softphone work if you are directly connected to the IPO, I would suggets that you test this incase your issue is sound card related.

http://www.iporesource.com

"Launching late 2006

 

[vaniello]

Yes, it does. I tried using the same laptop I use in the office, where the Softphone works for VOIP calls, through the VPN on the ASA 5510 and it does not work through the VPN.

V/