Enable BLF List
Enable BLF List by selecting it, BLF list is a
function which can monitor the group status, it is
not one to one monitoring, but the information
feedback from the sever to decide which
BLF list will monitor.
BLF List Number
Specify the BLF List Number.
SIP Global Settings
Strict Branch
Enable the Strict Branch, the value of the branch
must be in the beginning of z9hG4k in via field of
the invite sip message received, or the phone won’t
response to the invite sip message.
Notice: the deployment will become effective in all
sip lines.
Enable Group
Enable Group by selecting it, then the phone enable
the sip group backup function.
Notice: the deployment will become effective in all
sip lines.
Registration Failure
Retry Time
Specify the registration failure retry time, if the
phone register failed, the phone will register again
after registration failure retry time.
Notice: the deployment will become effective in all
sip lines.
8.3.3.2
STUN
In this web page, you can configure SIP STUN.
STUN: By STUN server, the phone in private network could know the type of
NAT and the NAT mapping IP and port of SIP. The phone might register itself to
SIP server with global IP and port to realize the device both calling and being
called in private network.
