I have a serious registration issues between Asterisk and a peer.
we have also connected Cisco Ata 112’s in the field to the peer without any problems.
The problem: After a first sip reload all works fine, an incoming call is accepted by asterisk and phone rings, this works ca. 2 minutes, after a new reload its works fine again an so on…
When it does not works it response with 401.
This is the config, I change the Ip addresses and credentials:
register => 31999999999:firstname.lastname@example.org:5060/31999999999