21
Max
Registration/Subscription
Time
Maximum duration (in seconds) of a SIP registration.
The default is 3600 seconds.
Min
Registration/Subscription
Time
Minimum duration (in seconds) of a SIP registration.
The default is 60 seconds.
Default Incoming/Outgoing
Registration Time
Default Incoming/Outgoing Registration Time: the
default duration (in seconds) of incoming/outgoing
registration.
Register Attempts
The number of SIP REGISTER messages to send to a
SIP Registrar before giving up. The default is 0 (no
limit).
Register Timeout
Number of seconds to wait for a response from a SIP
Registrar before classifying the register has timed out.
The default is 20 seconds.
Calling Channel Codec
Priority
Once enabled, when dialing out via SIP/SPS trunks, the
codec of calling channel will be selected preferentially. If
not, XT-800FXO Gateway will follow the priority order
in your SIP/SPS trunks.
Video Support
Support SIP video or no. The default is yes.
Max Bit Rate
Configure the max bit rate for video stream. The default:
384kb/s.
DNS SRV Look Up
Please enable this option when your SIP trunk contains
more than one IP address.
User Agent
To change the user agent parameter of asterisk, you can
change it if needed.
2) NAT
Figure 4-7 NAT Settings
