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automatically the time into the time recommended by the
server, and register again.
Server Type
Select the special type of server which is encrypted, or has
some unique requirements or call flows.
RFC
Protocol
Edition
Select SIP protocol version to adapt for the SIP server
which uses the same version as you select. For example, if
the server is CISCO5300, you need to change to RFC2543,
else phone may not cancel call normally. System uses
RFC3261 as default.
Transport
Protocol
Set transport protocols, TCP or UDP.
Enable Keep
Authenticati
on
Enable or Disable. Keep Authentication. If it is enabled,
system will take the last authentication field which is passed
the authentication by server to the request packet. It will
decrease the server’s repeated authorization work.
Click to talk
Set click to Talk (need practical software support).
Answer With
Single Codec
Enable/Disable the function. When call is incoming, phone
replies SIP message with just one codec which phone
supports.
Auto TCP
Set to use automatically TCP protocol to guarantee usability
of transport when message is above 1300 byte.
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.
Enable
GRUU
Set to support GRUU.
Enable
Displayname
Quote
Set to make quotation mark to display name as the phone
sends out signal, in order to be compatible with server.
Enable
user=phone
Is the highest authority on the system.
Stun Configuration
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.
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