Multimode Call

RMobileCall encapsulates information and functionality for a particular call. It is derived from the RCall interface of core telephony

The functionality of RCall is divided into a number of functional units, for the purpose of easier documentation and navigation and selectable support by TSY. Some RCall functions must be supported by the TSY, while others are optional and only need to be supported if the TSY supports that functional area.

The following table lists its major functional areas, whether the area must be supported by all TSYs, or whether it is optional, and whether the area is of potential use in GSM, WCDMA and CDMA modes respectively.

Area Required GSM WCDMA CDMA

call parameters

Yes

Yes

Yes

Yes

call information

Yes

Yes

Yes

Yes

call control

Yes

Yes

Yes

Yes

data calls

No

Yes

Yes

Yes

emergency calls

No

Yes

Yes

Yes

alternating calls

No

Yes

Yes

No

Call Completion to Busy Subscriber service

No

Yes

Yes

No

User-To-User Signalling service

No

Yes

Yes

No

Multimedia CS calls

No

No

Yes

No

voice privacy

No

No

No

Yes

traffic channel

No

No

No

Yes

Note

Some areas while not strictly required are needed by other optional Symbian platform components.