FAQ Desktop - initial_rtp_keep_alives

Description

The number of keep-alives the phone should send out at the beginning of an RTP session. A keep-alive is an empty STUN Binding Request and serves to open a pin hole in the firewall. The phone sends one keep-alive by default, i.e. when the setting is empty. This is for backward compatibility. Set this to zero if you want no keep-alives. Note that if the phone receives such a Binding Request, it will answer it with a Binding Response.

Web User Interface

Identity -> NAT (Tab) -> Number of initial keep-alives on RTP port 

Phone User Interface

N/A

Auto-provisioning