I'm using a Cisco VPN concentrator 3000 and when two laptops are connected out of the office with VPN, they can't speak to each other with their IP Softphone. Signalisation is good because we can see the flashing key. But media stream is lost...The 2 laptops are on the same address range.
No problem with PSTN or other internal phones.
How can I configure the VPN concentrator 3000 to enable routing for voice ?
If you have any ideas...thanks