Panasonic KX-TDE600, Руководство по программированию

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SIP Called Party Number Check Ability
Specifies whether to receive a SIP CO line call when receiving the INVITE message with an incorrect target
SIP-URI. The setting specified here is also applied when the request header is blank or contains characters
that can not be modified to a receivable number.
Default
Disable (High->Low)
Value Range
Disable (High->Low), Disable (Low->High), Enable
Symmetric Response Routing Ability
Enables this feature to request that the SIP server sends the response back to the source IP address and port
from which the request originated.
Default
Enable
Value Range
Disable, Enable
100rel Ability
Specifies whether to add the option tag 100rel to the header field of the INVITE message.
Default
Enable (Passive)
Value Range
Disable: This feature is not activated.
Enable (Active): Activates this feature only if the other device supports the feature.
Enable (Passive): Activates this feature only when requested by the other device.
Ringback Tone to Outside Caller
Enables the PBX to send a ringback tone to an outside caller when the network cannot send the tone.
Default
Disable
Value Range
Disable, Enable
3.3.2 Timer
SIP T1
Specifies the retransmission interval time for INVITE requests and responses.
Default
5 x 100 ms
Document Version 2008-11 Programming Manual for Virtual SIP CO Line Card 51
3.3.2 Timer