DTMF tones generated within Linphone are not recognised in Australia

[Graham Jenkins]

This bug has been reported previously for Xubuntu 14.04, and confirmed by several users.

I'm testing now using Linphone 3.6.1-2.5 on Lubuntu 16.04 alpha, and I'm seeing the same problem.
Specifically, DTMF tones generated withing Linphone are not recognised by Australian systems; this occurs regardless of whether "Send DTMFs as SIP info" is set.

I do not see this problem using Yate on Xubuntu 14.04 ..

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linphone 3.6.1-2.5
ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2
Uname: Linux 3.19.0-25-generic x86_64
ApportVersion: 2.19.3-0ubuntu3
Architecture: amd64
CurrentDesktop: LXDE
Date: Thu Jan 21 09:40:36 2016
InstallationDate: Installed on 2016-01-08 (12 days ago)
InstallationMedia: Ubuntu-Server 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: linphone
UpgradeStatus: Upgraded to xenial on 2016-01-09 (11 days ago)