asterisk: Introduce test TC_internal_call_momt

Lots of infrastructure added to allow call establishment and hang up
between 2 users connected to Asterisk.

SIP_Tests is updated to accomodate for necessary changes in
SIP_Templates used by Asterisk_Templates.

Change-Id: Ic5827a3e94b06fbc57f6405bf0f0aa6598c5d1fe
Related: SYS#6782
diff --git a/asterisk/expected-results.xml b/asterisk/expected-results.xml
index c1d9e2e..3eb9c8f 100644
--- a/asterisk/expected-results.xml
+++ b/asterisk/expected-results.xml
@@ -1,4 +1,5 @@
 <?xml version="1.0"?>
 <testsuite name='Titan' tests='9' failures='0' errors='0' skipped='0' inconc='0' time='MASKED'>
   <testcase classname='Asterisk_Tests' name='TC_internal_registration' time='MASKED'/>
+  <testcase classname='Asterisk_Tests' name='TC_internal_call_momt' time='MASKED'/>
 </testsuite>