diff --git a/conf/sip_profiles/internal.xml b/conf/sip_profiles/internal.xml
index 629019fbf4..1ccc54e445 100644
--- a/conf/sip_profiles/internal.xml
+++ b/conf/sip_profiles/internal.xml
@@ -43,6 +43,9 @@
 	<!-- <param name="shutdown-on-fail" value="true"/> -->
     <param name="sip-trace" value="no"/>
     <param name="sip-capture" value="no"/>
+
+    <!-- Use presence_map.conf.xml to convert extension regex to presence protos for routing -->
+    <!-- <param name="presence-proto-lookup" value="true"/> -->
     
 
     <!-- Don't be picky about negotiated DTMF just always offer 2833 and accept both 2833 and INFO -->
diff --git a/src/include/switch_ivr.h b/src/include/switch_ivr.h
index 38a9249c79..6df083bca6 100644
--- a/src/include/switch_ivr.h
+++ b/src/include/switch_ivr.h
@@ -933,6 +933,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_process_fh(switch_core_session_t *ses
 SWITCH_DECLARE(switch_status_t) switch_ivr_insert_file(switch_core_session_t *session, const char *file, const char *insert_file, switch_size_t sample_point);
 
 SWITCH_DECLARE(switch_status_t) switch_ivr_create_message_reply(switch_event_t **reply, switch_event_t *message, const char *new_proto);
+SWITCH_DECLARE(char *) switch_ivr_check_presence_mapping(const char *exten_name, const char *domain_name);
 
 /** @} */
 
diff --git a/src/mod/endpoints/mod_sofia/mod_sofia.h b/src/mod/endpoints/mod_sofia/mod_sofia.h
index 49732723bd..318ecea2ce 100644
--- a/src/mod/endpoints/mod_sofia/mod_sofia.h
+++ b/src/mod/endpoints/mod_sofia/mod_sofia.h
@@ -253,6 +253,7 @@ typedef enum {
  	PFLAG_AUTO_ASSIGN_PORT,
  	PFLAG_AUTO_ASSIGN_TLS_PORT,
 	PFLAG_SHUTDOWN,
+	PFLAG_PRESENCE_MAP,
 	/* No new flags below this line */
 	PFLAG_MAX
 } PFLAGS;
diff --git a/src/mod/endpoints/mod_sofia/sofia.c b/src/mod/endpoints/mod_sofia/sofia.c
index a0a18cdd21..173f16692d 100644
--- a/src/mod/endpoints/mod_sofia/sofia.c
+++ b/src/mod/endpoints/mod_sofia/sofia.c
@@ -2875,6 +2875,12 @@ switch_status_t reconfig_sofia(sofia_profile_t *profile)
 						} else {
 							sofia_clear_pflag(profile, PFLAG_LOG_AUTH_FAIL);
 						}
+					} else if (!strcasecmp(var, "presence-proto-lookup")) {
+						if (switch_true(val)) {
+							sofia_set_pflag(profile, PFLAG_PRESENCE_MAP);
+						} else {
+							sofia_clear_pflag(profile, PFLAG_PRESENCE_MAP);
+						}
 					} else if (!strcasecmp(var, "liberal-dtmf")) {
 						if (switch_true(val)) {
 							sofia_set_pflag(profile, PFLAG_LIBERAL_DTMF);
@@ -3590,6 +3596,12 @@ switch_status_t config_sofia(int reload, char *profile_name)
 						} else {
 							sofia_clear_pflag(profile, PFLAG_LOG_AUTH_FAIL);
 						}
+					} else if (!strcasecmp(var, "presence-proto-lookup")) {
+						if (switch_true(val)) {
+							sofia_set_pflag(profile, PFLAG_PRESENCE_MAP);
+						} else {
+							sofia_clear_pflag(profile, PFLAG_PRESENCE_MAP);
+						}
 					} else if (!strcasecmp(var, "liberal-dtmf")) {
 						if (switch_true(val)) {
 							sofia_set_pflag(profile, PFLAG_LIBERAL_DTMF);
diff --git a/src/mod/endpoints/mod_sofia/sofia_presence.c b/src/mod/endpoints/mod_sofia/sofia_presence.c
index 2b6c6ed5fc..7f34669e0e 100644
--- a/src/mod/endpoints/mod_sofia/sofia_presence.c
+++ b/src/mod/endpoints/mod_sofia/sofia_presence.c
@@ -2632,6 +2632,7 @@ void sofia_presence_handle_sip_i_subscribe(int status,
 	char *my_to_user = NULL;
 	char *sql, *event = NULL;
 	char *proto = "sip";
+	char *alt_proto = NULL;
 	char *d_user = NULL;
 	char *contact_str = "";
 	const char *call_id = NULL;
@@ -2647,6 +2648,7 @@ void sofia_presence_handle_sip_i_subscribe(int status,
 	const char *ipv6;
 	const char *contact_user;
 	sofia_nat_parse_t np = { { 0 } };
+	int found_proto = 0;
 
 	if (!sip) {
 		return;
@@ -2730,6 +2732,8 @@ void sofia_presence_handle_sip_i_subscribe(int status,
 			nua_respond(nh, SIP_404_NOT_FOUND, NUTAG_WITH_THIS_MSG(de->data->e_msg), TAG_END());
 			goto end;
 		}
+
+		found_proto++;
 	}
 
 	call_id = sip->sip_call_id->i_id;
@@ -2740,6 +2744,9 @@ void sofia_presence_handle_sip_i_subscribe(int status,
 		sip->sip_expires->ex_delta = 31536000;
 	}
 
+	if (sofia_test_pflag(profile, PFLAG_PRESENCE_MAP) && !found_proto && (alt_proto = switch_ivr_check_presence_mapping(to_user, to_host))) {
+		proto = alt_proto;
+	}
 	
 	if ((sub_state == nua_substate_active) && (switch_stristr("dialog", (const char *) event))) {
 		
@@ -3047,6 +3054,7 @@ void sofia_presence_handle_sip_i_subscribe(int status,
 	switch_safe_free(d_user);
 	switch_safe_free(to_str);
 	switch_safe_free(contact_str);
+	switch_safe_free(alt_proto);
 
 	if (!sent_reply) {
 		nua_respond(nh, 481, "INVALID SUBSCRIPTION", TAG_END());
diff --git a/src/switch_ivr.c b/src/switch_ivr.c
index 3904d07e5f..99fa2ff290 100644
--- a/src/switch_ivr.c
+++ b/src/switch_ivr.c
@@ -3137,6 +3137,57 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_create_message_reply(switch_event_t *
 	return status;
 }
 
+SWITCH_DECLARE(char *) switch_ivr_check_presence_mapping(const char *exten_name, const char *domain_name)
+{
+	char *cf = "presence_map.conf";
+	switch_xml_t cfg, xml, x_domains, x_domain, x_exten;
+	char *r = NULL;
+	switch_regex_t *re = NULL;
+	int proceed = 0, ovector[100];
+
+	if (!(xml = switch_xml_open_cfg(cf, &cfg, NULL))) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Open of %s failed\n", cf);
+		return NULL;
+	}
+
+	if (!(x_domains = switch_xml_child(cfg, "domains"))) {
+		switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't find any domains!\n");
+		return NULL;
+	}
+
+	for (x_domain = switch_xml_child(x_domains, "domain"); x_domain; x_domain = x_domain->next) {
+		const char *dname = switch_xml_attr(x_domain, "name");
+		if (!dname || strcasecmp(domain_name, dname)) continue;
+		
+		for (x_exten = switch_xml_child(x_domain, "exten"); x_exten; x_exten = x_exten->next) {
+			const char *regex = switch_xml_attr(x_exten, "regex");
+			const char *proto = switch_xml_attr(x_exten, "proto");
+			
+			if (regex && proto) {
+				proceed = switch_regex_perform(exten_name, regex, &re, ovector, sizeof(ovector) / sizeof(ovector[0]));
+				switch_regex_safe_free(re);
+				
+				if (proceed) {
+					switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG1, "Mapping %s@%s to proto %s matching expression [%s]\n", 
+									  exten_name, domain_name, proto, regex);
+					r = strdup(proto);
+					goto end;
+				}
+				
+			}
+		}
+	}
+
+ end:
+	
+	if (xml) {
+		switch_xml_free(xml);
+	}
+
+	return r;
+	
+}
+
 
 /* For Emacs:
  * Local Variables: