IP softphone and VPN

[YIMMER]

Hello all ,Having problems connecting ip-softphone though firewall via vpn . I am using secure remote client and I can ping the pbx but when I go log in the phone it seems to be there and then "logged off by server" .Any help would be great
Thanks

 

[lopes1211]

You need a softphone client which allows you to specify a local IP. You also need a VPN client which displays your local VPN IP when connecting. Everytime a user connects, they'll need to put in their current dynamic VPN local address when they launch the softphone app. -CL

 

[YIMMER]

Well it seems we have tried that by puting the IP assighed by the fire wall into the advanced setting on the ip phone

 

[lopes1211]

Can you ping the VPN IP from the PBX? -CL

 

[YIMMER]

I will give a try in a bit I though I would that I can connect to ASA via VPN no problem from home

 

[YIMMER]

Ok I was able to ping from the pbx to the ip of the vpn client it did ask me from what board so I did from Clan and Medpro all good

 

[lopes1211]

And this does work fine from on-site correct? Just wondering about RTU's, etc. -CL

 

[YIMMER]

yes it works fine from on site no trouble at all

 

[telcoguy]

Got a firewall blocking your H323?
also mind that IP port 1720 and 1719 are not blocked.
The connection is set up via the C-LAN,the actual call gets handled by you medpro board.
what usually happens is that the call-setup works , but the voice does not work correctly through a VPN, especially when using NAT.
depending on the call-timeout the client will return the "logged off by server" message.

Hope this helps,

Rob

 

[VOIPeng]

If anyone else is having problems with VPN and IP Softphone email me. If you are using Cisco, Checkpoint or Avaya/VPNet VPN's it will work it just is matter of getting the proper configuration. Thank you,
Frank Mirecki