3GPP51.010-1Mobile Station (MS) conformance specificationPart 1: Conformance specificationTS
11.4.2 Conformance requirement
An MS claiming to not support the Call Hold supplementary service and in the U10 call active state shall, when the appropriate Call Hold MMI command is entered:
– Fail to put the first call on hold.
– Fail to place the second call.
– Optionally provide some indication to the user of an error.
3GPP TS 02.83; 3GPP TS 04.83.
11.4.3 Test purpose
To verify that an MS claiming to not support the Call Hold supplementary service and in the U10 call active state, reacts in the following manner when the appropriate call hold MMI command is entered:
– MS fails to put the first call on hold.
– MS fails to place the second call.
– Optionally provides some indication to the user of an error.
11.4.4 Method of test
18.104.22.168 Initial conditions
The mobile originating generic call set up procedures shall be followed up to and including the transmission by the MS of the CONNECT ACKNOWLEDGE to place the call in the U10 call active state.
A second directory number is entered followed by "SEND" via the MMI.
11.4.5 Test requirement
The MS shall not send any HOLD messages on the dedicated channel. This is checked for 3 s.
The MS may however send other messages.
The MS may also give the user an indication of the error that has occurred.