Cisco SPA2102 Administration Manual page 197

ATA Voice Field Reference
PSTN Line page (SPA3102)
Cisco Small Business ATA Administration Guide
Auth Resync-
Reboot
SIP Proxy-Require
SIP Remote-Party-
ID
SIP GUID
If this feature is enabled, the ATA device authenticates the
sender when it receives the NOTIFY resync reboot (RFC
2617) message. To use this feature, select yes. Otherwise,
select no.
The default is yes.
The SIP proxy can support a specific extension or behavior
when it sees this header from the user agent. If this field is
configured and the proxy does not support it, it responds
with the message, unsupported. Enter the appropriate
header in the field provided.
To use the Remote-Party-ID header instead of the From
header, select yes. Otherwise, select no.
The default is yes.
This field is not available with the PAP2T. The Global
Unique ID is generated for each line for each device. When
it is enabled, the ATA device adds a GUID header in the SIP
request. The GUID is generated the first time the unit boots
up and stays with the unit through rebooting and even
factory reset. This feature was requested by Bell Canada
(Nortel) to limit the registration of SIP accounts.
The default is yes.
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