Invention Grant
- Patent Title: Enhanced telephony application server session management
-
Application No.: US15610225Application Date: 2017-05-31
-
Publication No.: US10476920B2Publication Date: 2019-11-12
- Inventor: Saqib Badar
- Applicant: T-Mobile USA, Inc.
- Applicant Address: US WA Bellevue
- Assignee: T-Mobile USA, Inc.
- Current Assignee: T-Mobile USA, Inc.
- Current Assignee Address: US WA Bellevue
- Agency: Lee & Hayes, P.C.
- Main IPC: H04L12/16
- IPC: H04L12/16 ; H04Q11/00 ; H04L29/06

Abstract:
A solution for an enhanced telephony application server session management is described herein. A TAS may fork an incoming invite for packet switched connectivity to all user devices of a same user account registered for parallel forking. When receiving a SIP client failure response from one of the user device, TAS will determine whether a SIP 18X provisional response is received prior to the client failure response from the same user device. If such a provisional response is not received prior to the client failure response, TAS will not terminate the invite forking.
Public/Granted literature
- US20180352013A1 ENHANCED TELEPHONY APPLICATION SERVER SESSION MANAGEMENT Public/Granted day:2018-12-06
Information query