Polycom 3725-76302-001LI manual To this peer server for resolution

External SIP Peer Device Management

Table 5-15Edit External SIP Peer dialog box

	Field	Description
	Port	The SIP signaling port number. Defaults to the standard
		UDP/TCP port, 5060. If the peer server is using a
		different port number, specify it.
		If left blank, the system uses the full RFC 3263
		procedure to determine the port via DNS.
	Use route header	Add a Route header with the peer’s Next hop address
		value to the message. Applies to both forwarded
		messages and external REGISTER messages.
		If not selected, the only valid Request-URI
		configurations are those that use the peer's Next hop
		address value for the URI host.
	Prefix range	The dial string prefix(es) assigned to this peer server.
		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 peer server for resolution.
		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 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.
	Strip prefix	If selected, the system strips the prefix when a call that
		includes a prefix is routed to this peer.
	Type	For a Microsoft Office Communications Server or Lync
		Server 2010, select Microsoft. Otherwise, select Other.
		Selecting Microsoft implicitly adds the Destination
		network value to the Domain List (if not already there)
		and automatically selects the Postliminary settings that
		are correct for most deployments with Lync Server
		2010, but you can modify them if necessary.
	Transport type	The transport protocol to use when contacting this peer
		server. The default is UDP.
		Auto detect tells the system to select the protocol as
		specified in RFC 3263, and is not valid if Next hop
		address is a numeric IP address instead of a
		host/domain name.
Polycom, Inc.		115