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3.4.1 Channel & SIP Telephony
[Receiving Dialed Number for Incoming call]
Parameter & Description
Receiving Dialed Number Mode
Specifies the header of the SIP message in which
the dialed number is stored when receiving a call.
Receiving Dialed Number Validity Check
Specifies whether to check the validity of a dialed
number when receiving a call.
*1
Depending on the ITSP conditions, you may be required to change the setting to "Enable".
3.
Assign parameters in SIP Options referring to the descriptions below.
Parameter & Description
PRACK
Specifies whether the PRACK feature is enabled
or disabled.
Session Timer
Specifies whether Session Timer is enabled or
disabled.
Session Timer (Offer)
Specifies the length of time that the card offers for
Session Timer.
*1
Session Timer Method
Specifies the method to be used for Session
Timer.
*1
The actual length of time depends on the negotiation with the SIP server or the other device. Therefore, the Session Timer will
not always function for the length of time set in advance.
4.
Click Set.
The Channel Settings screen is displayed.
40
Installation Manual
Default
"To" header
Request-URI, "To" header
Disable
Enable, Disable
*1
Default
Enable (Passive)
Disable
Enable (Passive):
Activates this feature only
when requested by the
other device
Enable (Active): Activates
this feature only if the other
device supports the
feature
Enable (Passive)
Disable
Enable (Passive):
Activates this feature only
when requested by the
other device
Enable (Active): Activates
this feature only if the other
device supports the
feature
180 sec
180–3600 sec
re-INVITE
re-INVITE, UPDATE
Value Range
Value Range
Document Version 2008-10
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