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Simulate phone auto answer cause Espace soft phone release.

Publication Date:  2019-07-24 Views:  124 Downloads:  0

Issue Description

Espace user 2558 open one number operation under SoftCo, bind 7 numbers: 9****2557,9****2558, 1001, 1002, 2558, 2559, 6360. The number 9****2557 and 9****2558 are virtual phone under S company's soft switch, the others are Espace users.
The calling Espace (6666) call 2558, 8 numbers all shake, and 2558 doesn’t answer, 2 seconds later, the calling Espace (6666) shows that the phone has connected and start to count time, but the shake ring will disappear in 2 seconds (no phone called through).
Version: V100R002C03T (custom-build)
Networking: softco9500 (espace terminal)----Siemens equipment—virtual phone.

Alarm Information


Handling Process

Through analyzing the log from the scene, when the called doesn’t pick up the phone, softco receives a picking message (ANM), cause other users of SoftCo in one number release in advance.

Root Cause

One number means multiple terminals use one same number, and has same supply operation; this number is one of the internal terminals. This terminal is the main terminal, main terminal can be chosen by users. When other users call the One number, this user’s multi terminals shakes ring base on the rule set, users can choose one of the terminal to answer, if one terminal picks up, other terminals will release the call.
Repeat the malfunction, analyze the log of SoftCo.


When start One number operation, confirm whether users opened other supply operation (such as agree to change the number, move phone to change the number, and auto answer) to avoid conflict or release in advance.
One number operation can realize user inside the bureau call One number, if the user outside call the One number other binding number will not ring, it is because the relay of different operator.