diff --git a/pjsip/include/pjsip/sip_transport_tcp.h b/pjsip/include/pjsip/sip_transport_tcp.h
index 9cd396dc00..82b99e3ff2 100644
--- a/pjsip/include/pjsip/sip_transport_tcp.h
+++ b/pjsip/include/pjsip/sip_transport_tcp.h
@@ -71,6 +71,7 @@ typedef struct pjsip_tcp_transport_cfg
     /**
      * Optional published address, which is the address to be
      * advertised as the address of this SIP transport. 
+     * It can be set using IP address or hostname.
      * By default the bound address will be used as the published address.
      */
     pjsip_host_port     addr_name;
@@ -181,6 +182,7 @@ PJ_DECL(pj_status_t) pjsip_tcp_transport_start(pjsip_endpoint *endpt,
  *                      selected by the operating system.
  * @param a_name        Optional published address, which is the address to be
  *                      advertised as the address of this SIP transport. 
+ *                      It can be set using IP address or hostname.
  *                      If this argument is NULL, then the bound address
  *                      will be used as the published address.
  * @param async_cnt     Number of simultaneous asynchronous accept()
@@ -248,6 +250,7 @@ PJ_DECL(pj_sock_t) pjsip_tcp_transport_get_socket(pjsip_transport *transport);
  *                      selected by the operating system.
  *
  * @param a_name        The published address for the listener. 
+ *                      It can be set using IP address or hostname.
  *                      If this argument is NULL, then the bound address will 
  *                      be used as the published address.
  *
@@ -272,6 +275,7 @@ PJ_DECL(pj_status_t) pjsip_tcp_transport_lis_start(pjsip_tpfactory *factory,
  *                      selected by the operating system.
  *
  * @param a_name        The published address for the listener. 
+ *                      It can be set using IP address or hostname.
  *                      If this argument is NULL, then the bound address will
  *                      be used as the published address.
  *
diff --git a/pjsip/include/pjsip/sip_transport_tls.h b/pjsip/include/pjsip/sip_transport_tls.h
index a5fba6d675..53062fac41 100644
--- a/pjsip/include/pjsip/sip_transport_tls.h
+++ b/pjsip/include/pjsip/sip_transport_tls.h
@@ -491,6 +491,7 @@ PJ_DECL(void) pjsip_tls_setting_wipe_keys(pjsip_tls_setting *opt);
  *                      selected by the operating system.
  * @param a_name        Optional published address, which is the address to be
  *                      advertised as the address of this SIP transport. 
+ *                      It can be set using IP address or hostname.
  *                      If this argument is NULL, then the bound address
  *                      will be used as the published address.
  * @param async_cnt     Number of simultaneous asynchronous accept()
@@ -529,6 +530,7 @@ PJ_DECL(pj_status_t) pjsip_tls_transport_start(pjsip_endpoint *endpt,
  *                      selected by the operating system.
  * @param a_name        Optional published address, which is the address to be
  *                      advertised as the address of this SIP transport.
+ *                      It can be set using IP address or hostname.
  *                      If this argument is NULL, then the bound address
  *                      will be used as the published address.
  * @param async_cnt     Number of simultaneous asynchronous accept()
@@ -565,6 +567,7 @@ PJ_DECL(pj_status_t) pjsip_tls_transport_start2(pjsip_endpoint *endpt,
  *                      selected by the operating system.
  *
  * @param a_name        The published address for the listener.
+ *                      It can be set using IP address or hostname.
  *                      If this argument is NULL, then the bound address will
  *                      be used as the published address.
  *
@@ -590,6 +593,7 @@ PJ_DECL(pj_status_t) pjsip_tls_transport_lis_start(pjsip_tpfactory *factory,
  *                      selected by the operating system.
  *
  * @param a_name        The published address for the listener.
+ *                      It can be set using IP address or hostname.
  *                      If this argument is NULL, then the bound address will
  *                      be used as the published address.
  *
diff --git a/pjsip/src/pjsip/sip_transport_tcp.c b/pjsip/src/pjsip/sip_transport_tcp.c
index 03835dd10d..a0d9dce531 100644
--- a/pjsip/src/pjsip/sip_transport_tcp.c
+++ b/pjsip/src/pjsip/sip_transport_tcp.c
@@ -274,14 +274,20 @@ static pj_status_t update_factory_addr(struct tcp_listener *listener,
         pj_sockaddr tmp;
         int af = pjsip_transport_type_get_af(listener->factory.type);
 
-        /* Verify that address given in a_name (if any) is valid */
-        status = pj_sockaddr_init(af, &tmp, &addr_name->host,
-                                  (pj_uint16_t)addr_name->port);
-        if (status != PJ_SUCCESS || !pj_sockaddr_has_addr(&tmp) ||
-            (af == pj_AF_INET() && tmp.ipv4.sin_addr.s_addr == PJ_INADDR_NONE))
+        tmp.addr.sa_family = (pj_uint16_t)af;
+
+        /* Validate IP address only */
+        if (pj_inet_pton(af, &addr_name->host, pj_sockaddr_get_addr(&tmp)) == PJ_SUCCESS)
         {
-            /* Invalid address */
-            return PJ_EINVAL;
+            /* Verify that address given in a_name (if any) is valid */
+            status = pj_sockaddr_init(af, &tmp, &addr_name->host,
+                                      (pj_uint16_t)addr_name->port);
+            if (status != PJ_SUCCESS || !pj_sockaddr_has_addr(&tmp) ||
+                (af == pj_AF_INET() && tmp.ipv4.sin_addr.s_addr == PJ_INADDR_NONE))
+            {
+                /* Invalid address */
+                return PJ_EINVAL;
+            }
         }
 
         /* Copy the address */
diff --git a/pjsip/src/pjsip/sip_transport_tls.c b/pjsip/src/pjsip/sip_transport_tls.c
index 5813b2bf8b..3c0a6ae92c 100644
--- a/pjsip/src/pjsip/sip_transport_tls.c
+++ b/pjsip/src/pjsip/sip_transport_tls.c
@@ -375,13 +375,20 @@ static pj_status_t update_factory_addr(struct tls_listener *listener,
         pj_sockaddr tmp;
         int af = pjsip_transport_type_get_af(listener->factory.type);
 
-        status = pj_sockaddr_init(af, &tmp, &addr_name->host,
-                                  (pj_uint16_t)addr_name->port);
-        if (status != PJ_SUCCESS || !pj_sockaddr_has_addr(&tmp) ||
-            (af == pj_AF_INET() && tmp.ipv4.sin_addr.s_addr == PJ_INADDR_NONE))
+        tmp.addr.sa_family = af;
+
+        /* Validate IP address only */
+        if (pj_inet_pton(af, &addr_name->host, pj_sockaddr_get_addr(&tmp)) == PJ_SUCCESS)
         {
-            /* Invalid address */
-            return PJ_EINVAL;
+            /* Verify that address given in a_name (if any) is valid */
+            status = pj_sockaddr_init(af, &tmp, &addr_name->host,
+                                      (pj_uint16_t)addr_name->port);
+            if (status != PJ_SUCCESS || !pj_sockaddr_has_addr(&tmp) ||
+                (af == pj_AF_INET() && tmp.ipv4.sin_addr.s_addr == PJ_INADDR_NONE))
+            {
+                /* Invalid address */
+                return PJ_EINVAL;
+            }
         }
 
         /* Copy the address */