Specifications

310HD IP Phone
Administrator's Manual 48 Document #: 299-13801
Parameter Description
Outbound Proxy Port
The port on which the outbound Proxy listens.
Note: This parameter is available only if the parameter Use SIP Outbound
Proxy is enabled.
SIP Timers
Retransmission Timer
T1
The time interval (in msec) between the first transmission of a SIP message
and the first retransmission of the same message (according to RFC 3261).
The default is 500.
Note: The time interval between subsequent retransmissions of the same SIP
message starts with SipT1Rtx and is multiplied by two until SipT2Rtx. For
example (assuming that SipT1Rtx = 500 and SipT2Rtx = 4000):
 The first retransmission is sent after 500 msec.
 The second retransmission is sent after 1000 (2*500) msec.
 The third retransmission is sent after 2000 (2*1000) msec.
 The fourth retransmission and subsequent retransmissions until
SIPMaxRtx are sent after 4000 (2*2000) msec.
Retransmission Timer
T2
The maximum interval (in msec) between retransmissions of SIP messages
(according to RFC 3261). The default is 4000.
Note: The time interval between subsequent retransmissions of the same SIP
message starts with SipT1Rtx and is multiplied by two until SipT2Rtx.
Retransmission Timer
T3
The SIP T3 retransmission timer according to RFC 3261
INVITE Timer
The SIP INVITE timer according to RFC 3261.