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SIP 52
SmartLink 4020 Getting Started Guide 6 • Telephony
Figure 27. VoIP VLAN Configuration section of the SIP window
SIP Parameters
Figure 28. SIP Parameters section of the SIP window
Hook Flash MIME Type
This is the MIME Type to be used in a SIP INFO message used to signal hook flash event.
SIP Timer Values (milliseconds)
SIP T1. RFC 3261 T1 value (RTT estimate). Range: 0–64000 milliseconds (default is 5000 msec or
5 seconds).
SIP T2. RFC 3261 T2 value (maximum retransmit interval for non-INVITE requests and INVITE
responses). Range: 0–64000 milliseconds (default is 4000 msec or 4 seconds).
SIP T4. RFC 3261 T4 value (maximum duration a message will remain in the network). Range: 0–64 seconds
(default is 5000 msec or 5 seconds).
RTP Parameters
RTP Port Min and RTP Port Max define a range that contains at least four even-numbered ports (100–106,
for example).