AASTRA 53i Guia Do Utilizador

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Administrator Level Options
3-18
41-001160-00, Rev 01  Release 2.0  
IP Phone Administrator Guide
Administrator Options
Explicit MWI Subscription Period
The requested duration, in seconds, before the MWI subscription times out. 
The phone re-subscribes to MWI before the subscription period ends.
Send MAC Address in REGISTER Message
Adds an "Aastra-Mac:" header to the SIP REGISTER messages sent from the 
phone to the call server, where the value is the MAC address of the phone.
Send Line Number in REGISTER Message
Adds an "Aastra-Line:" header to the SIP REGISTER messages sent from the 
phone to the call server, where the value is the line number that is being 
registered.
Session Timer
The time, in seconds, that the IP phone uses to send periodic re-INVITE 
requests to keep a session alive. The proxy uses these re-INVITE requests to 
maintain the status' of the connected sessions. See RFC4028 for details. 
Default is 0.
Timer 1 and Timer 2
The time, in milliseconds, that applies to an IP phone session. These timers 
are SIP transaction layer timers defined in RFC 3261. Timer 1 is an estimate 
of the round-trip time (RTT). Timer 2 represents the amount of time a 
non-INVITE server transaction takes to respond to a request.
Transaction timer
The amount of time, in
milliseconds that the phone allows the callserver (registrar/proxy) to respond 
to SIP messages that it sends. If the phone does not receive a response in the 
amount of time designated for this parameter, the phone assumes the message 
has timed out. Valid values are 4000 to 64000. Default is 4000.
Transport Protocol
The protocol that the RTP port on the IP phone uses to send out RTP packets. 
Valid values are 0 (both), 1 (UDP), or 2 (TCP). Default is 1 (UDP).
Registration Failed Retry Timer
Specifies the time, in seconds, that the phone waits between registration 
attempts when a registration is rejected by the registrar.
Registration Timeout Retry Timer
Specifies the length of time, in seconds, that the phone waits until it 
re-attempts to register after a REGISTER message times out.