Nortel Networks NN43001-321 Manual de usuario descargar pdf (Pagina 33)

Dialing and numbering plan issues for the mixed network 33

— Local numbers

— National numbers

— International numbers

— Special numbers

•

Private address space — which is subdivided into the following

categories:

— Level 0 regional numbers (in CS 1000, these are known as

Coordinated Dialing Plan [CDP] numbers)

— Level 1 regional numbers (in CS 1000, these are known as Universal

Dialing Plan [UDP] numbers)

To be useful, a DN must be scoped within an appropriate address space.

One way of achieving this is by qualifying DNs.

Both CS 1000 and MCS 5100 systems have implemented a phone-context

parameter of the userinfo-ﬁeld of the telephony-based SIP URI as a means

to fully qualify a DN.

•

A SIP URI with the user=phone-context parameter is known as

a telephony-based SIP URI. For more information, see Appendix

"Parameter conﬁguration for a SIP URI" (page 103).

•

A SIP URI without the user=phone-context parameter is known as a

non-telephony-based SIP URI or a regular SIP URI.

The format of a telephony-based SIP URI is as follows:

sip:[directorynumber];phone-context=[phonecontext]@[domainame];

user=phone

sip:+[directorynumber]@[domainname];user=phone (for international

PSTN numbers)

The format of a regular SIP URI is as follows:

sip:[username]@[domainame]

ATTENTION

Rule 4: In a mixed CS 1000/MCS 5100 network, all DNs passed between the two

systems must be in the form of a telephony-based SIP URI.

If Rule 4 is not followed, a CDP DN may be incorrectly interpreted as a UDP

number or a public/local number as a UDP number.

Nortel Communication Server 1000

Communication Server 1000 to MCS 5100 Converged Desktop Type 2 Conﬁguration Guide

NN43001-321 01.05 Standard

Release 5.0 15 February 2008

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Nortel Networks NN43001-321 Manual de usuario Pagina 33