andyfram
IS-IT--Management
- Oct 2, 2003
- 74
Our corporate HQ has a Panasonic TDA600 PBX, and a remote office has a Panasonic TDA200 PBX - both have the IP Gateway card for VoIP. On both sides, the next hop of the PBX is a sonicwall firewall, and the second hop is the Internet Provider's router.
The branches are connected via VPN with a sonicwall device.
When either end places a call to the other, the phone rings, and the correct extension shows up on the caller ID. But every time, after about 20 seconds, the connection drops to dial tone.
Panasonic swears the PBXs are set up correctly.
The sonicwall folks say the VPN tunnel between the 2 branches is wide open policy-wise.
There is plenty of bandwidth (HQ has one partial and one full T1, and the branch has ADSL).
Anyone experience something like this?
The branches are connected via VPN with a sonicwall device.
When either end places a call to the other, the phone rings, and the correct extension shows up on the caller ID. But every time, after about 20 seconds, the connection drops to dial tone.
Panasonic swears the PBXs are set up correctly.
The sonicwall folks say the VPN tunnel between the 2 branches is wide open policy-wise.
There is plenty of bandwidth (HQ has one partial and one full T1, and the branch has ADSL).
Anyone experience something like this?