Peer 'xxx' is now UNREACHABLE! Last qualify: 0

[NoFate (Fabio Pergola)]

Hi, i have an intercom hikvision, i can register if perfect fine with an extensions, but after about 10/15 sec, its offline in PBX

if i call it from another sip client, within the 15 sec, it works

after 15 sec, when offline, not possible anymore to call

why is that? attached a debug, the sip extension is 6001
see line 179 , there it goes to UNREACHABLE

all is on local lan

whats wrong?

logfile : https://www.dropbox.com/s/i7bruuwe0zkqscl/UNREACHABLE.log?dl=0

thnx in advance

[NoFate (Fabio Pergola)]

2094	[2021-01-23 14:12:48] VERBOSE[2110] chan_sip.c: Registered SIP '6001' at 192.168.0.71:5060	
2095	[2021-01-23 14:12:52] NOTICE[2110] chan_sip.c: Peer '6001' is now UNREACHABLE! Last qualify: 0

[PitzKey (Itzik)]

Is there a router/firewall in between? If so, that might be killing the SIP Sessions.
Also, please post a screenshot of the SIP Settings from the endpoint device

[NoFate (Fabio Pergola)]

nah, its all local, no firewall
also i have 4 sips, 3 are connecting fine, its only the 4th one
they are all local