diff --git a/src/mod/endpoints/mod_sofia/sofia.c b/src/mod/endpoints/mod_sofia/sofia.c
index c953c91be8..028a484538 100644
--- a/src/mod/endpoints/mod_sofia/sofia.c
+++ b/src/mod/endpoints/mod_sofia/sofia.c
@@ -540,6 +540,8 @@ void *SWITCH_THREAD_FUNC sofia_profile_thread_run(switch_thread_t *thread, void
 							  sofia_event_callback,	/* Callback for processing events */
 							  profile,	/* Additional data to pass to callback */
 							  NUTAG_URL(profile->bindurl),
+							  TAG_IF(!strchr(profile->sipip, ':'), SOATAG_AF(SOA_AF_IP4_ONLY)),
+							  TAG_IF(strchr(profile->sipip, ':'), SOATAG_AF(SOA_AF_IP6_ONLY)),
 							  TAG_IF(sofia_test_pflag(profile, PFLAG_TLS), NUTAG_SIPS_URL(profile->tls_bindurl)), 
 							  TAG_IF(sofia_test_pflag(profile, PFLAG_TLS), NUTAG_CERTIFICATE_DIR(profile->tls_cert_dir)), 
 							  TAG_IF(sofia_test_pflag(profile, PFLAG_TLS), TPTAG_TLS_VERSION(profile->tls_version)),