Dear all,
I have configured a Remote Access VPN on a 5520 ASA and the users from out side are able to connect to this VPN successfuly using VPN client version 5.3.
The clients have a softphone (IP Phone) installed on thier laptops, and when they make a call over the RA-VPN, the call is successfuly made to the LAN but when i dial a number outside the LAN (over the PSTN using Voice gateway) the call is initiated successfuly (Ring), but when the other side asnwers my call, i cannot hear him and also he cannot hear me as well, this situation lasts for 2 to 3 minutes, then we can hear each other.
i have tried to sniff from the laptop side and found that the IP-Phone sends RTP packets to the VG but it doesnt recieve any until the 2 to 3 minutes pass.
i also red that the stateful firewall from the VPN client could be the reason so i have tried to disable it from the laptop side, but a message appeared that the firewall service is disabled.
any idea about this?
many thanx in advance.
Mamoun
