7 Interaction with other supplementary services
23.1353GPPMulticall supplementary serviceRelease 17Stage 2TS
7.1 Line Identification services
No impact.
7.2 Call forwarding unconditional (CFU)
No impact.
7.3 Call forward on busy (CFB)
The condition NDUB occurs in accordance with the definition for multicall. (See TS 22.135).
7.4 Call forwarding on no reply (CFNRy)
No impact.
7.5 Call forwarding on MS not reachable (CFNRc)
No impact.
7.6 Call Hold (CH)
No impact.
7.7 Call Waiting (CW)
Call Waiting SS will be invoked under the conditions described in TS 22.135.
7.8 Multiparty service (MPTY)
No impact.
7.9 Closed user group (CUG)
No impact.
7.10 Advice Of Charge (AoC)
No impact.
7.11 Call Barring services
No impact.
7.12 Explicit call transfer (ECT)
No impact.
7.13 Call Deflection (CD)
No impact.
7.14 Completion of calls to busy subscriber (CCBS)
The NDUB condition occurs in accordance with the definition for multicall. (See 3GPP TS 22.135).
A subscriber provisioned with multicall is in the idle state when the subscriber has no ongoing (active or held) calls. CCBS requests in the destination B CCBS queue shall be processed if destination B is idle.