Hi All,
I am using Sophos xg115 firewall. The configuration is followed:
Firewall Configuration:
All RTP ports: allowed (5000 - 65735)
SIP ports: (5060 - 5080)
Phone Configuration:
Phone is configured with Vonage services.
Stun Configuration: 3478 (UDP/TCP)
Server hostname/IP: stun.zoiper.com
Refresh Period: 30 seconds.
But Still Zoiper gets unregistered any random point of time.
Vinay Pal