asterisk -vrrrrr
sip show peers
sip show settings
sip reload
vi /etc/asterisk/sip_general_custom.conf
allow=g729
videosupport=yes
allow=h261
allow=h263
allow=h263p
allow=h264
allow=g723
bindport=5060
:nat
externip=xxx.xxx.xxx.xxx
localnet=192.168.0.0/24
maxexpiry=300
vi /etc/asterisk/chan_dahdi.conf
callerid=asreceived
cidsignalling=dtmf
cidstart=dtmf
busydetect=yes
busycount=3
busypattern=500,500
or
cidsignalling=v23
cidstart=polarity
amportal restart
Peer '888' is now UNREACHABLE
If it is mobile device and always show UNREACHABLE, this account set to Unmonitored should be better
qualify no
