C.2 Interworking ISUP to SIP

29.1633GPPInterworking between the IP Multimedia (IM) Core Network (CN) subsystem and Circuit Switched (CS) networksTS

Table C.2.1 shows the mapping of a Calling party’s category received in an ISUP IAM to a "cpc" URI parameter within tel URI or the userinfo part of SIP URI with user="phone" in the P-Asserted-Identity header. When the Calling party’s category parameter value "operator, language x" is received the O-MGCF shall generate an Accept-Language header field with the value that corresponds to language x.

Table C.2.1: Mapping of the ISUP Calling party’s category parameter to the CPC parameter

ISUP Parameter

SIP Parameters

calling party’s category

"cpc" URI parameter in P-Asserted-Identity

Accept-Language

operator, language French

operator

fr

operator, language English

operator

en

operator, language German

operator

de

operator, language Russian

operator

ru

operator, language Spanish

operator

es

ordinary calling subscriber

ordinary

test call

test

payphone

payphone

calling party’s category unknown at this time (national use)

unknown

mobile terminal located in the home PLMN

mobile-hplmn

mobile terminal located in a visited PLMN

mobile-vplmn

emergency service call per ANSI Standard ATIS-1000113.2005 [117] (NOTE 1)

emergency

NOTE 1: This is a national/regional specific value. Interworking shall only occur when interconnecting with indicated national network.

NOTE 2: In case the calling party’s category contains values that are not in this table then based on operator policy the "cpc" URI parameter may be omitted or may contain national/regional specific value.

Annex D (informative):
Void

Annex E (normative):
Multimedia interworking between the IP Multimedia Core Network (CN) Subsystem (IMS) and Circuit Switched (CS) networks