unable to make outgoing call

```
a) Before posting your issue you MUST answer to the questions otherwise it
will be rejected (invalid status) by us
b) Please check the issue tacker to avoid duplication
c) Please provide network capture (wireshark) or Android log (DDMS output)
if you want quick response

What steps will reproduce the problem?
1.two account log-in A and B in the same wlan;
2.A call B at first;
3.B call A;

What is the expected output? What do you see instead?
A can call B while B can not make an outgoing call to A

What version of the product are you using? On what operating system?
imsdroid version:
android:versionCode="581"
android:versionName="2.581.1247"

Please provide any additional information below.

can you make it? below is the log from eclipse.

logout:
03-26 11:38:54.663: D/org.doubango.imsdroid.Screens.ScreenAV(12670): onStart()
03-26 11:38:54.663: D/org.doubango.imsdroid.Screens.ScreenAV(12670): onResume()
03-26 11:38:54.663: D/org.doubango.ngn.media.NgnProxyPluginMgr(12670):
OnPluginCreated(145,twrap_proxy_plugin_audio_consumer)
03-26 11:38:54.663: D/org.doubango.ngn.media.NgnProxyPluginMgr(12670):
OnPluginCreated(146,twrap_proxy_plugin_audio_producer)
03-26 11:38:54.663: V/PopupWindow(12670): dismiss()
03-26 11:38:54.663: D/org.doubango.ngn.services.impl.NgnSipService(12670):
OnDialogEvent (Dialog connecting,80) eventid 900
03-26 11:38:54.673: V/PopupWindow(12670): if (mPopupView != mContentView &&
mPopupView instanceof ViewGroup)
03-26 11:38:54.713: D/org.doubango.imsdroid.Screens.ScreenAV(12670):
disableKeyguard()
03-26 11:38:54.713: D/Notification(12670): packagename== org.doubango.imsdroid
03-26 11:38:54.713: D/Notification(12670): label== IMSDroid
03-26 11:38:54.713: D/Notification(12670): packagename== org.doubango.imsdroid
03-26 11:38:54.713: D/Notification(12670): label== IMSDroid
03-26 11:39:26.663: D/org.doubango.ngn.media.NgnProxyAudioProducer(12670):
stopCallback
03-26 11:39:26.663: D/org.doubango.ngn.media.NgnProxyAudioConsumer(12670):
stopCallback
03-26 11:39:26.663: D/org.doubango.ngn.media.NgnProxyPluginMgr(12670):
OnPluginDestroyed(145,twrap_proxy_plugin_audio_consumer)
03-26 11:39:26.663: D/org.doubango.ngn.media.NgnProxyAudioProducer(12670):
stopCallback
03-26 11:39:26.663: D/org.doubango.ngn.services.impl.NgnSipService(12670):
OnDialogEvent (Transport error,80) eventid 903
03-26 11:39:26.663: D/org.doubango.ngn.sip.NgnAVSession(12670):
setState(TERMINATED)
03-26 11:39:26.673: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.673: D/org.doubango.ngn.media.NgnProxyPluginMgr(12670):
OnPluginDestroyed(146,twrap_proxy_plugin_audio_producer)
03-26 11:39:26.673: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.673: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.673: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.673: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.673: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.673: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.673: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.683: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.683: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.683: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.683: D/org.doubango.imsdroid.Screens.ScreenTabMessages(12670):
update()
03-26 11:39:26.693: D/org.doubango.imsdroid.Screens.ScreenAV(12670):
loadTermView()
03-26 11:39:26.693: D/org.doubango.ngn.sip.NgnSipSession(12670): mRefCount=1
03-26 11:39:28.193: D/org.doubango.imsdroid.Screens.ScreenAV(12670): onPause()
03-26 11:39:28.233: D/org.doubango.imsdroid.Screens.ScreenAV(12670): onStop()
03-26 11:39:28.233: D/org.doubango.imsdroid.Screens.ScreenAV(12670): onDestroy()
03-26 11:39:28.233: D/org.doubango.ngn.sip.NgnSipSession(12670): mRefCount=0

```

Original issue reported on code.google.com by `liuzh...@gmail.com` on 26 Mar 2015 at 3:48