Opened 8 years ago

#28 new defect

Old siemens phones cannot make voice calls (04.08 channel mode)

Reported by: laforge Owned by: laforge
Priority: minor Milestone: milestone:
Component: OpenBSC Version:
Keywords: Cc:


Some older Siemens phones, notably the S11, implicitly reject the 04.08 CHANNEL MODE MODIFY from signalling to VOICE mode, thus all
voice calls fail.

Either they do not support very early assignment, or we are sending the mode modify a bit too soon for their state machines.

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