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Field
Prefix range
Strip prefix
Register externally
Supports SIP OPTIONS ping
Domain List
Add new domain
Authorized domains
Polycom, Inc.
Description
The dial string prefix(es) assigned to this SIP peer.
Enter a single prefix (44), a range of prefixes (44-47), or multiple prefixes
separated by commas (44,46)
If your dial plan uses the Dial services by prefix dial rule (in the default dial
plan) to route calls to services, all dial strings beginning with an assigned
prefix are forwarded to this SIP peer for resolution.
If your dial plan instead uses a rule that you create to apply the Resolve to
external SIP peer action, there is no need to specify a prefix.
Otherwise, the system applies the SIP Routing settings of the originating site
(see
Sites
and
Edit Site
Dialog) for calls to endpoints outside the enterprise
network.
Note: For a SIP peer, the dial string must either include the protocol or consist
of only the prefix and user name (no @domain). For instance, if the SIP peer's
prefix is 123, the dial string for a call to alice@polycom.com must be one of
the following:
sip:123alice@polycom.com
sips:123alice@polycom.com
123alice
If selected, the system strips the prefix when a call that includes a prefix is
routed to this peer.
Some external SIP peers require peers to register with them as an endpoint
does, using a REGISTER message.
Select this option to enable the External Registration tab and configure the
system to register with this external peer server, following the rules specified
in RFC 3261.
If selected, the system sends SIP OPTIONS ping messages to the SIP peer
to determine its responsiveness. See the Admin > Call Server > Call Server
Settings page for configuration options related to SIP OPTIONS ping
messages.
If your dial plan uses a rule to apply the Resolve to external SIP peer action,
you can restrict calls to this peer server to specific domains by adding the
authorized domains to this list.
If this list is empty, all domains can resolve to this peer.
Note: In some circumstances (depending on network topology and
configuration), dialing loops can develop if you don't restrict peer servers to
specific domains.
Enter a domain and click Add to add it to the list of authorized domains.
List of administrative domains, contained in the dial string, for which calls are
routed to this peer server.
Leave this list empty to route any call that matches the rule to this peer server.
Select a domain and click Remove to remove it from the list.
Device Management
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