Moved back to ofono task back to Confirmed as this is not actively being
worked on...
** Changed in: ofono (Ubuntu)
Status: In Progress => Confirmed
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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to telephony-service in
Ubuntu.
https://bugs.launchpad.net/bugs/1341453
Title:
No alert tone heard if network does not play it in-band
Status in ofono package in Ubuntu:
Confirmed
Status in telephony-service package in Ubuntu:
Confirmed
Bug description:
Test case:
- Dial a voice call
- Call starts ringing at the other end
- Expecting to hear an alerting tone in my earpiece
- But there is only silence
This is a rare but valid "feature" in some commercial networks, for
example Bouygues Telecom, France. The in-band audio connection is
sometimes not yet set up in the alerting phase.
The relevant technical specification piece, from 3GPP TS 24.008 sect.
5.2.1.5 "Alerting": "an alerting indication should be given to the
user. If the mobile station has not attached the user connection then
the mobile station shall internally generate an alerting indication".
The Android RIL API supports this feature via notification
"RIL_UNSOL_RINGBACK_TONE",
http://androidxref.com/4.2.2_r1/xref/hardware/ril/include/telephony/ril.h#3717
. Ubuntu should listen to this notification and generate the alerting
tone appropriately.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/ofono/+bug/1341453/+subscriptions
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