ATCOM AT-620 User Manual page 33

AT-620 User Manual
Register Expire Time: register expire time, default is 600 seconds. AT-620
will auto configure this expire time to the server recommended setting if it
is different from the SIP server.
Auto Detect Server Interval: Set examining interval of the server, default is
60 seconds.
User Agent: Set the user agent if have, the default is VoIP Phone 1.0.
Signal Key: Signal encryption Key.
Media Key: voice stream encryption Key.
Local Port: Local SIP signal port，default as 5060.
Hotline Number: Set hot line number of each line.
MWI Number: Set SIP1 voicemail Number.
Enable PRACK: Enable or disable SIP PRACK function, suggest use the
default config.
Long Contact: Set more parameters in contact field.
Click to Talk: Set click to Talk (need practical software support).
Ban Anonymous Call: Set to ban Anonymous Call.
Dial Without Register: Set call out by proxy without registration.
Enable Strict Proxy: Support the special SIP server-when phone receives
the packets sent from server， phone will use the source IP address, not the
address in via field.
Auto Detect Server: Enable/Disable keeps NAT of SIP alive. If some server
refuse to register with too short interval time, and has no packets sending to
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