Determination method and device for voice communication network
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- HUAWEI DEVICE CO LTD
- Publication Date
- 2017-12-08
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Abstract
Description
technical field
[0001] The present invention relates to the technical field of communication, in particular to a method and device for determining a voice communication network. Background technique
[0002] There are currently three types of voice technologies: LTE and simultaneous voice support (Simultaneous Voice and LTE, SVLTE) technology & LTE and GSM simultaneous support (Simultaneous GSM and LTE, SGLTE) technology, circuit switched fallback (Circuit Switched Fallback, CSFB) technology and LTE network voice service (Voice over LTE, VoLTE) technology, wherein:
[0003] SVLTE&SGLTE is a single-card dual-standby working mode. The terminal works under the Long Term Evolution (LTE) network and the 2G / 3G network at the same time. The data service of the terminal uses the LTE network, and the voice service uses the 2G / 3G network. Voice communication is performed in a circuit switched (Circuit Switched, CS) manner.
[0004] CSFB is a single-card single-standby working method...