ATCOM AT-620 User Manual page 30

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
device in private network to keep NAT alive, user could set this function ON.
It need set the keep alive interval time less than the NAT server's.
Ring Type: select the ring type for SIP1.
Enable Keep Authentication: Enable/Disable Keep Authentication System
will take the last authentication field which is passed the authentication by
server to the request packet. It will decrease the server's repeat
authorization work, if it is enable.
Enable Via rport: Enable/Disable system to support RFC3581. Via rport is
special way to realize SIP NAT.
Enable PRACK: Enable or disable SIP PRACK function, suggest use the
default config.
Long Contact: Set more parameters in contact field.
Forward Type: Select call forward mode, the default is Off .
Off：Close down calling forward.
Busy：If the phone is busy, incoming calls will be forwarded to the appointed
phone.
No answer：If there is no answer, incoming calls will be forwarded to the
appointed phone.
Always：Incoming calls will be forwarded to the appoint phone directly.
The phone will prompt the incoming while doing forward.
Forward Phone Number: Appoint your forward phone number.
Server Type: Select the special type of server which is encrypted, or has
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