The indication of a terminating CS call to the mobile terminal will be done by the Multicall supplementary service until either the maximum number of bearer (Nbr
) or the maximum number of CS mobile terminating calls (Ncs
_MT) has been reached.
If the maximum number of terminating calls (Ncs
_MT) has been reached, and additional terminating call shall be reject without any indication to the subscriber.
If the maximum number of bearers (Nbr
) has been reached an additional terminating call will be only indicated to the user if the user has the Call Waiting supplementary service active, see clause 7.3.2
for interactions with Call Waiting.
_MT havenot been reached, a terminating call is indicated to the user and she may react in the following way:
Accept the terminating call:
The user/user applications shall have the possibility to allocate a new bearer for the terminating call.
If the user has the Call Hold SS active, the user shall have the possibility to reuse/share an already established bearer (e.g. release existing calls or put an speech on hold and accept the terminating call).
Rejecting the terminating call:
If the user rejects the terminating call the call shall be released in a normal way.
Ignore the incoming call:
If the user ignores the indication of the terminating call (i.e. neither accepts nor rejects it ), the normal call handling shall apply, e.g. after the Alerting Timer expires the call will be released.
If there is a terminating speech call attempt and an ongoing speech call (active or held), the terminating call shall not be indicated to user by the Multicall service. The Call waiting call SS shall be invoked if applicable, see clause 7.3.2
for interactions with Call Waiting SS.
The user can have possibility to reuse/share a bearer only when she is provisioned for Call Hold SS. See subclause 7.3.1
for interaction with Call Hold SS.