Grandstream Networks GXV34 0 Series Manual page 36

SIP URI
Scheme Defines which SIP header, "sip" or "sips", will be used if TLS is selected for SIP Transport.
When Using The default setting is "sip".
TLS
Use Actual
Ephemeral
Determines the port information in the Via header and Contact header of SIP message when the phone
Port in system use TCP or TLS. If set to No, these port numbers will use the permanent listening port on the phone.
Contact
Otherwise, they will use the ephemeral port for the particular connection.
with The default setting is "No".
TCP/TLS
Determines if the phone system will send SIP Instance ID. The SIP instance ID is used to uniquely identify the
Support SIP
device. If set to "Yes", the SIP Register message Contact header will include +sip.instance tag.
Instance ID
The default setting is "Yes".
Defines an estimate of the round-trip time of transactions between a client and server. If no response is
SIP T1 received in T1, the figure will increase to 2*T1 and then 4*T1. The request re-transmit retries would continue
until a maximum amount of time define by T2.
Timeout
The default setting is 0.5 sec.
Specifies the maximum retransmit time of any SIP request messages (excluding the SIP INVITE message).
SIP T2
The re-transmitting and doubling of T1 continues until it reaches the T2 value.
Interval
The default setting is 4 sec.
Defines the amount of time that the server transaction can remain when unreliable response (3xx-6xx)
SIP Timer D received. The valid value is 0-64 seconds.
Interval
The default value is 0.
Configures the phone system to remove the outbound proxy URI from the Route header. This is used for the
Remove
SIP Extension to notify the SIP server that the device is behind a NAT/Firewall. If it is set to "Yes", it will
OBP from
remove the Route header from SIP requests.
Route
The default setting is "No".
Enable
100rel
Actives PRACK (Provisional Acknowledgment) method. PRACK improves the network reliability by adding an
acknowledgement system to the provisional Responses (1xx). It is set to "Yes", the phone system will
response to the 1xx response from the remote party.
Default is "No".
Configures whether to use route set in NOTIFY (follow RFC 6665). If enabled, the Request URI of the
Use route
set in refresh/cancel subscription will use the URI in the received NOTIFY Contact (RFC 6665); otherwise, the URI in
NOTIFY the previously subscribed 200 OK Contact will be used.
(Follow RFC
6665)
Session
Timer
Enable
Allows the phone system to use the session timer, when set to "Yes", it will be added in the SIP INVITE
Session
message to notify the server.
Timer
Configures the phone system's SIP session timer. It enables SIP sessions to be periodically "refreshed" via a
SIP request (UPDATE, or re-INVITE). If there is no refresh via an UPDATE or re-INVITE message, the session
Session
will be terminated once the session interval expires. Session Expiration is the time (in seconds) where the
Expiration
session is considered timed out, provided no successful session refresh transaction occurs beforehand.
(s)
The default setting is 180. The valid range is from 90 to 64800.
Determines the minimum session expiration timer (in seconds) if the phone act as a timer refresher.
Min-SE (s)
The default setting is 90. The valid range is from 90 to 64800.