30
Forward Phone Number
Appoint your forward phone number.
Server Type
Select the special type of server which is encrypted, or has some
unique requirements or call flows.
DTMF Mode
Select DTMF sending mode, there are three modes:
z
DTMF_RELAY
z
DTMF_RFC2833
z
DTMF_SIP_INFO
Different VoIP Service providers may provide different modes.
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;
RFC Privacy Edition
Set Anonymous call out safely; Support RFC3323and RFC3325;
Subscribe Expire Time
Set the interval of Subscribe.
Enable DNS SRV
Support DNS looking up with _sip.udp mode
Click to Talk
Set click to Talk ( need practical software support).
Signal Encode
Enable/Disable Signal Encrypt.
RTP Encode
Enable/Disable RTP Encrypt.
Enable Session Timer
Set Enable/Disable Session Timer, whether support RFC4028.It
will refresh the SIP sessions.
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 as message is above 1300 byte
Enable Strict Proxy
Support the special SIP server-when phone recieves the
patckets 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 displayname as the phone sends
out signal, in order to be compatible with server.
4.3.3.2. IAX2 Config