Polycom 3725-76302-001LI manual Rule Effect

Dial Rules Call Server Configuration

Table 10-5How the default dial plan works

Rule		Effect
1	Dial registered	If the dial string is the alias or SIP URI of a
	endpoints by alias	registered endpoint, the call is routed to that
		endpoint.
2	Dial by conference	Otherwise, if the dial string is the dial-in number of
	room ID	a conference room on the Polycom DMA system,
		the call is routed to that conference room.
3 Dial by virtual entry		Otherwise, if the dial string is the dial-in number of
	queue ID	a virtual entry queue on the Polycom DMA system,
		the call is routed to that VEQ.
4 Dial services by prefix		Otherwise, if the dial string begins with the
		configured prefix of a service (such as an MCU,
		ISDN gateway, SBC, neighbor gatekeeper, SIP
		peer proxy, or simplified ISDN dialing service) the
		call is routed to that service.
		Note: For a SIP peer, the dial string must 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:
		123alice
5	Dial external networks	Otherwise, if the address is an external address,
	by H.323 URL, email ID,	the call is routed to that external address (H.323
	or SIP URI	calls use an SBC to reach IP addresses outside the
		enterprise network).
		Examples of external addresses:
		H323:johnsmith@someothercompany.com
		sip:johnsmith@someothercompany.com
6 Dial endpoints by IP		Otherwise, if the address is an IP address, the call
	address	is routed to that IP address (H.323 calls use an
		SBC to reach IP addresses outside the enterprise
		network).
		Examples of IP addresses:
		1.2.3.4
		1.2.3.4##abc
		sip:abc@1.2.3.4
		sip:1.2.3.4@mycompany.com

If you have special configuration needs and want to modify the dial plan, be aware that some of the default dial rules are necessary for “normal” operation. Removing or modifying them takes the system out of compliance with ITU and IEEE standards.

Here are some suggestions and guidelines for modifying the dial plan:

Polycom, Inc. 247