Description Specifies whether to add the "Contact" header to SIP ACK message.
Value Range
• Y: Add the "Contact" header
• N: Do not add the "Contact" header
Default Value
N
VOICE_MESSAGE_AVAILABLE
Value Format BOOLEAN
Description Specifies how the existence of voice messages is determined when a
"Messages-Waiting: yes" message is received.
Value Range
• Y: Determines that voice messages exist when "Messages-
Waiting: yes" is received with a "Voice-Message" line included.
• N: Determines that voice messages exist when "Messages-
Waiting: yes" is received even without a "Voice-Message" line
included.
Default Value
Y
SIP_INVITE_EXPIRE_n
For details about parameter names end with "_n", see 5.2.1 Configuration File Parameters
Value Format INTEGER
Description Specifies the period, in seconds, in which the INVITE message will
expire.
Value Range 0, 60–65535 (0: Disable)
Default Value 0
SIP_FOVR_NORSP_n
For details about parameter names end with "_n", see 5.2.1 Configuration File Parameters
Value Format BOOLEAN
Description Specifies whether to perform the fail-over process when the unit
detects that the SIP server is not replying to SIP message.
Value Range
• Y: Enable fail-over
• N: Disable fail-over
Note
• If set to "Y", the unit will try to use the other SIP servers via the
DNS SRV and A records.
• If set to "N", the unit will not try to use the other SIP servers.
Default Value
Y
SIP_FOVR_MAX_n
For details about parameter names end with "_n", see 5.2.1 Configuration File Parameters
Value Format INTEGER
5.3.22 SIP Settings
Document Version: 2017-07 Administrator Guide 281