Incoming phone calls with hidden phone numbers are ignored

[Michael Zanetti]

incoming phone calls from hidden numbers and services like Skype are silently ignored. The display wakes up, but nothing else happens.

* This is what I get in .cache/upstart/dbus.log:

new call "/ril_0/voicecall01" QMap(("Emergency", QVariant(bool, false) ) ( "LineIdentification" , QVariant(QString, "") ) ( "Multiparty" , QVariant(bool, false) ) ( "Name" , QVariant(QString, "") ) ( "RemoteHeld" , QVariant(bool, false) ) ( "RemoteMultiparty" , QVariant(bool, false) ) ( "State" , QVariant(QString, "incoming") ) )
Error creating channel for incoming call - not a valid number: ""

* Here's the dbus-monitor --system log

signal sender=:1.40 -> dest=(null destination) serial=160 path=/ril_0; interface=org.ofono.VoiceCallManager; member=CallAdded
   object path "/ril_0/voicecall01"
   array [
      dict entry(
         string "State"
         variant string "incoming"
      )
      dict entry(
         string "LineIdentification"
         variant string ""
      )
      dict entry(
         string "Name"
         variant string ""
      )
      dict entry(
         string "Multiparty"
         variant boolean false
      )
      dict entry(
         string "RemoteHeld"
         variant boolean false
      )
      dict entry(
         string "RemoteMultiparty"
         variant boolean false
      )
      dict entry(
         string "Emergency"
         variant boolean false
      )
   ]

[Pat McGowan (pat-mcgowan)]

Confirmed on a hidden number.
Calls from my Skype account include a calling number so they worked.

[Michał Sawicz (saviq)]

Hey, this is a big one, do we have any idea what's causing this and how to fix?

[Bill Filler (bfiller)]

related to https://bugs.launchpad.net/ubuntu/+source/telephony-service/+bug/1238939
testing going on now to see if the fixes for that bug solve this one as well