DMA OperationsGuide Signaling Settings
80 Polycom, Inc.
The Edit Guest Prefix dialog box lets you edit an Unauthorized prefixes list
entry in the SIP Settings section of the Signaling Settings page.
The following table describes the fields in the Edit Guest Prefix dialog box.
See also:
“Signaling Settings” on page 71
“Local Cluster Configuration Procedures” on page82
Table 4-9 Edit Guest Prefix dialog box
Field Description
Prefix The prefix number for this entry.
This is the number that an SBC is configured to add to
the Request-URI of the first INVITE message for
untrusted calls to the DMA system.
Strip prefix Check this box to have the system immediately strip this
prefix from the INVITE message.
Authentication Select one of the following:
•None — The system doesn’t issue authentication
challenges or check authentication credentials for
calls with this prefix.
• Authenticate — The system issues authentication
challenges and checks authentication credentials
for calls with this prefix.
The settings on the Device Authentication page
(see “Device Authentication” on page264)
determine the realm used for authentication and
whether the Call Server responds to
unauthenticated requests with 401 (Unauthorized)
or 407 (Proxy Authentication Required).
•Block — The system blocks calls with this prefix.