ETSI TS 124 615 specifies the stage 3, Protocol Description of the Communication Waiting (CW) service, based
on stage 1 and stage 2 of the ISDN call waiting supplementary services. It provides the protocol details in the IP
Multimedia (IM) Core Network (CN) subsystem based on the Session Initiation Protocol (SIP) and the Session
Description Protocol (SDP).
The Communication Waiting (CW) service enables a user to be informed, that very limited resources are available for
an incoming communication. The user then has the choice of accepting, rejecting or ignoring the waiting call (as per
basic call procedures).
The present document is applicable to User Equipment (UE) and Application Servers (AS) which are intended to
support the CW supplementary service.
| Edition : | 14.0.0 |
| File Size : | 1
file
, 250 KB |
| Note : | This product is unavailable in Russia, Ukraine, Belarus |
| Number of Pages : | 31 |
| Published : | 04/01/2017 |