Reducing call failure rate in multi-subscriber identity module capable devices

Reducing call failure rate in multi-subscriber identity module capable devices

A method for reducing call failure rates on a multi-subscriber identity module (SIM) mobile communication device includes: selecting a first SIM camped on a visiting public land mobile network (VPLMN); attempting call initiation on the first SIM; determining whether call setup on the first SIM on th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Bodduru Appala Naga Raju, Jayavarapu Venkata Krishna Murthy, Upadhyay Onkar Nath
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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Beschreibung
Zusammenfassung:A method for reducing call failure rates on a multi-subscriber identity module (SIM) mobile communication device includes: selecting a first SIM camped on a visiting public land mobile network (VPLMN); attempting call initiation on the first SIM; determining whether call setup on the first SIM on the VPLMN is successful; in response to determining that the call setup on the first SIM is unsuccessful, determining if a second SIM is camped on a home public land mobile network (HPLMN); and in response to determining that the second SIM is camped on the HPLMN, selecting the second SIM camped on the HPLMN; and attempting call initiation using the second SIM.