[asterisk-users] Update peer IP address

[Sebastian Kemper]

Am 16. September 2015 18:48:16 MESZ, schrieb Daniel Heckl <daniel.heckl at gmail.com>:
>Sebastian,
>
>If I have understood you correctly, the SIP communication is now via
>NAT instead forwarded ports. For safety, it is much better.
>
>I think it is not because of a UDP timeout, but rather because of a NAT
>timeout. For this is "qualify" exactly the right thing to let the NAT
>port opened. 
>
>Daniel
Hi Daniel,

Not quite. Asterisk is running on an Openwrt router. So Asterisk is listening on a public IP. No NAT involved, no port forwarding.

Openwrt tracks the UDP connection for 180s (default). "qualify" keeps the connection alive (every 120s).

Without "qualify" inbound calls wouldn't work starting 180s after the registration, until after another 300s, when Asterisk registers again (provider requires a registration expiry >480s).

Regards,
Sebastian