diff --git a/libs/openzap/mod_openzap/mod_openzap.c b/libs/openzap/mod_openzap/mod_openzap.c
index 5caa9e1a5b..6b5688d2cd 100644
--- a/libs/openzap/mod_openzap/mod_openzap.c
+++ b/libs/openzap/mod_openzap/mod_openzap.c
@@ -2346,7 +2346,7 @@ SWITCH_STANDARD_API(oz_function)
                                 stream->write_function(stream, "+OK\n");
                         }
                 } else {
-			stream->write_function(stream, "-ERR Usage: oz q931_pcap on|off [pcapfilename without suffix]\n");
+			stream->write_function(stream, "-ERR Usage: oz q931_pcap <span_id> on|off [pcapfilename without suffix]\n");
                         goto end;
 		}
 
diff --git a/libs/openzap/src/ozmod/ozmod_libpri/ozmod_libpri.c b/libs/openzap/src/ozmod/ozmod_libpri/ozmod_libpri.c
index 5b07494ef6..3af38e389a 100644
--- a/libs/openzap/src/ozmod/ozmod_libpri/ozmod_libpri.c
+++ b/libs/openzap/src/ozmod/ozmod_libpri/ozmod_libpri.c
@@ -548,7 +548,7 @@ static __inline__ void state_advance(zap_channel_t *zchan)
 			pri_sr_set_bearer(sr, 0, isdn_data->l1);
 			pri_sr_set_called(sr, zchan->caller_data.ani.digits, dp, 1);
 			pri_sr_set_caller(sr, zchan->caller_data.cid_num.digits, (isdn_data->opts & OZMOD_LIBPRI_OPT_OMIT_DISPLAY_IE ? NULL : zchan->caller_data.cid_name),
-						dp, PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN);
+						dp, (zchan->caller_data.pres != 1 ? PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN : PRES_PROHIB_USER_NUMBER_NOT_SCREENED));
 
 			if (!(isdn_data->opts & OZMOD_LIBPRI_OPT_OMIT_REDIRECTING_NUMBER_IE)) {
 				pri_sr_set_redirecting(sr, zchan->caller_data.cid_num.digits, dp, PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN, PRI_REDIR_UNCONDITIONAL);