104 Appendix A Parameter configuration for a SIP URIGlobal uniqueness of phone-context strings is a prerequisite for being ableto serve a domain (for example, CDP-domain or an area code) by severalsystems (such as CS 1000 and MCS 5100).If the Site1 CDP domain is divided between a CS 1000 and an MCS 5100system, then a globally unique phone-context for Site1 CDP domain mustbe defined and recognized by both systems.Note: The CS 1000 Redirect Server only routes calls to the CS 1000users and the MCS 5100 only routes calls to MCS 5100 users.Phone-context stringsPhone-context strings for public numbersTable 6 "Phone-context strings for public numbers (example)" (page104) provides an example for creating phone-context strings for publicnumbers.Table 6Phone-context strings for public numbers (example)NPI/TON ScopeHierarchicaldomain-basedschemaGlobalprefixed-basedschemaCS 1000 SIPRedirect ServerimplementationNPI=Public,TON=InternationalGlobal international.e164.myrootdomainNot applicableDN starts with+.Not applicableDN starts with +.NPI=Public,TON=NationalNationalFor example,mynationmynation.national.e164.myrootdomain+1(+"countrycode")+1(+"country code")NPI=Public,TON=LocalArea withinnationFor example,myarea,mynationmyarea.mynation.local.e164.myrootdomain+1-613(+"countrycode"- "areacode")+1-613(+"country code"-"area code")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.