some more protection from passing around and printing null values, we are now initializing null's passed to switch_caller_profile_new as blank strings in the caller profile, if your using any caller profile values in if's, please use !switch_strlen_zero() in your check.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4203 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/endpoints/mod_portaudio/mod_portaudio.c

@@ -849,7 +849,7 @@ static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *sessi
 
 		if (outbound_profile) {
 			char name[128];
-            char *id = outbound_profile->caller_id_number ? outbound_profile->caller_id_number : "na";
+            char *id = !switch_strlen_zero(outbound_profile->caller_id_number) ? outbound_profile->caller_id_number : "na";
 			snprintf(name, sizeof(name), "PortAudio/%s", id);
 					 
 			switch_channel_set_name(channel, name);