Grandstream Networks GHP6 Series Administration Manual page 12

Use X-Grandstream-PBX
Header
Use P-Access-Network-Info
Header
Use P-Emergency-Info
Header
Use MAC Header
Add MAC in User-Agent
SIP Transport
Enable TCP Keep-alive
SIP Listening Mode
Local SIP Port
SIP URI Scheme when using
TLS
Use Actual Ephemeral Port in
Contact with TCP/TLS
Support SIP Instance ID
SIP T1 Timeout
● No: the phone will not add "P-Preferred-Identity header".
Configures to use X-Grandstream-PBX header in SIP request.
Default setting is "Yes".
Configures to use P-Access-Network-Info header in SIP request.
Default setting is "Yes".
Configures to use P-Emergency-Info header in SIP request.
Default setting is "Yes".
● If Register Only, all outgoing SIP message will include the MAC header.
● If Yes to all SIP, all outgoing SIP messages will include the MAC header.
● If No, the phone's MAC header will not be included in any outgoing SIP messages.
The default setting is "No".
● If Yes except REGISTER, all outgoing SIP messages will include the phone's MAC
address in the User-Agent header, except for REGISTER and UNREGISTER.
● If Yes to All SIP, all outgoing SIP messages will include the phone's MAC address in the
User-Agent header.
● If No, the phone's MAC address will not be included in the User-Agent header in any
outgoing SIP messages.
The default setting is "No".
Selects the network protocol used for the SIP transport.
The default setting is "UDP".
Configures whether to enable TCP Keep-alive for the TCP connection between the terminal
and the SIP server.
Configures whether or not to listen to multiple SIP protocols.
● If set to "Dual", phone will listen to TCP when UDP is selected.
● If set to "Dual (Secured)", phone will listen to TLS/TCP when UDP is selected. If "TCP" or
"TLS/TCP" is selected, UDP will be listened too.
● If set to "Dual (BLF Enforced)", phone will try to enforce BLF subscriptions to use TCP
protocol by adding 'transport=tcp' to the Contact header.
The default setting is "Transport Only".
Configures the local SIP port used to listen and transmit.
Specifies if "sip" or "sips" will be used when TLS/TCP is selected for SIP Transport. The
default setting is "sips".
Configures whether the actual ephemeral port in contact with TCP/TLS will be used when
TLS/TCP is selected for SIP Transport.
The default setting is "No".
Configures whether SIP Instance ID is supported or not.
The default setting is "Yes".
SIP T1 Timeout is an estimate of the round-trip time of transactions between a client and
server. If no response is received the timeout is increased and request re-transmit retries
would continue until a maximum amount of time define by T2. The default setting is 0.5
seconds.