Grandstream Networks GSC3570 User Manual page 50

SIP Registration Failure
Retry Wait Time
SIP T1 Timeout
SIP T2 Timeout
SIP Transport
SIP URI Scheme when
using TLS
Use Actual Ephemeral
Port in Contact with
TCP/TLS
Outbound Proxy Mode
Support SIP Instance ID
SUBSCRIBE for MWI
SUBSCRIBE for
Registration
Enable 100rel
Callee ID Display
Specifies the interval to retry registration if the process is failed. The valid
range is 1 to 3600.
The default value is 20 seconds.
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.
SIP T2 Timeout is the maximum retransmit time of any SIP request
messages (excluding the INVITE message). The re-transmitting and
doubling of T1 continues until it reaches the T2 value. Default is 4 seconds.
Determines the network protocol used for the SIP transport. Users can
choose from TCP, UDP and TLS. The default setting is "UDP".
Specifies if "sip" or "sips" will be used when TLS/TCP is selected for SIP
Transport. The default setting is "sips".
This option is used to control the port information in the Via header and
Contact header. If set to No, these port numbers will use the permanent
listening port on the GSC3570. Otherwise, they will use the ephemeral port
for the connection. The default setting is "No".
The Outbound proxy mode is placed in the route header when sending SIP
messages, or they can be always sent to outbound proxy.
Defines whether SIP Instance ID is supported or not.
Default setting is "Yes".
When set to "Yes", a SUBSCRIBE for Message Waiting Indication will be
sent periodically. The GSC3570 supports synchronized and non-
synchronized MWI. The default setting is "No".
When set to "Yes", a SUBSCRIBE for Registration will be sent out
periodically. The default setting is "No".
The use of the PRACK (Provisional Acknowledgment) method enables
reliability to SIP provisional responses (1xx series). This is particularly
important to support PSTN internetworking. To invoke a reliable provisional
response, the 100rel tag is appended to the value of the required header of
the initial signaling messages. The default setting is "No".
When set to "Auto", the GSC3570 will update the callee ID in the order of P-
Asserted Identity Header, Remote-Party-ID Header and To Header in the 180
Ringing. If "Disabled", callee ID will be displayed as "Unavailable".
GSC3570 User Manual
Version 1.0.3.1
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