Invention Grant
- Patent Title: Voice call resumption on a legacy network
- Patent Title (中): 遗留网络上的语音呼叫恢复
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Application No.: US13890026Application Date: 2013-05-08
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Publication No.: US09338718B2Publication Date: 2016-05-10
- Inventor: Samy Khay-Ibbat , Sarma V. Vangala , Sreevalsan Vallath , Tarik Tabet
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Downey Brand LLP
- Main IPC: H04W36/30
- IPC: H04W36/30 ; H04W36/14

Abstract:
A method for resuming a voice call on a legacy network is provided. The method can include a wireless communication device establishing a voice call with a remote device over a first cellular network; determining that a connection quality of the first cellular network has dropped below a threshold connection quality; sending a notification that the wireless communication device is releasing the voice call to transition to a legacy cellular network and will resume the voice call on the legacy cellular network; releasing the voice call on the first cellular network; transitioning to the legacy cellular network; establishing a second voice call with the remote device on the legacy cellular network; and using the second voice call to resume the voice call with the remote device.
Public/Granted literature
- US20140269624A1 VOICE CALL RESUMPTION ON A LEGACY NETWORK Public/Granted day:2014-09-18
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