Nortel 1000 Con?guration guide Manual

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Nortel 1000 Con?guration guide Manual Manual pdf 103 page image

103Appendix AParameter configuration for a SIP URIContents This section contains information about the following topics:"Introduction" (page 103)"Example" (page 103)"Phone-context strings" (page 104)"Phone-context strings for public numbers" (page 104)"Phone-context strings for unknown numbers" (page 105)"Phone-context strings for private numbers" (page 105)Introduction The SIP phone-context parameter qualifies a DN beyond the usualNumbering Plan Identifier (NPI) and Type of Number (TON). In addition tothe NPI/TON, the phone-context parameter includes unique identification ofthe scope for which the number is valid.Example If a CDP number is dialed within the Site1 CDP domain of theCOMPANYABC network and the call must be routed at the network level (bya network router such as a CS 1000 Redirect Server or MCS 5100 ProxyServer), then the number must be qualified with a phone-context parameterthat incorporates the following:• NPI = Private• TON = CDP• Enterprise ID = companyabc.com• CDP Domain ID = Site1These elements must be combined such that the resulting string is globallyunique.Nortel Communication Server 1000Communication Server 1000 to MCS 5100 Converged Desktop Type 2 Configuration GuideNN43001-321 01.05 StandardRelease 5.0 15 February 2008Copyright © 2005-2008, Nortel Networks.