atcomsystems.ca/forum Forums Other TDM Phone Systems Sprint - Tadiran Telephones & Systems SIP Terminal Grandstream HT-502 problem on IPXoffice

Thanks Riman and Reataylor,
My main office and branch use Checkpoint Firewall on each site and connected through Site to Site VPN Tunel. Main office has internal IP 192.168.200.x and branch has 192.168.2.x . I just sending new ATA box (SPA2100) and I'll let you know also the wireshark data capture.