--- asterisk/channels/chan_sip.c	2007-12-18 12:11:00.768904147 +0100
+++ asterisk-qualityfreq/channels/chan_sip.c	2007-12-18 13:56:24.594375033 +0100
@@ -180,7 +180,6 @@
 #define CALLERID_UNKNOWN        "Unknown"
 
 #define DEFAULT_MAXMS                2000             /*!< Qualification: Must be faster than 2 seconds by default */
-#define DEFAULT_FREQ_OK              60 * 1000        /*!< Qualification: How often to check for the host to be up */
 #define DEFAULT_FREQ_NOTOK           10 * 1000        /*!< Qualification: How often to check, if the host is down... */
 
 #define DEFAULT_RETRANS              1000             /*!< How frequently to retransmit Default: 2 * 500 ms in RFC 3261 */
@@ -1350,6 +1349,7 @@
 	int pokeexpire;			/*!<  When to expire poke (qualify= checking) */
 	int lastms;			/*!<  How long last response took (in ms), or -1 for no response */
 	int maxms;			/*!<  Max ms we will accept for the host to be up, 0 to not monitor */
+	int qualifyfreq;		/*!<  Qualification: How often to check for the host to be up */
 	struct timeval ps;		/*!<  Time for sending SIP OPTION in sip_pke_peer() */
 	struct sockaddr_in defaddr;	/*!<  Default IP address, used until registration */
 	struct ast_ha *ha;		/*!<  Access control list */
@@ -11609,6 +11609,7 @@
 		ast_cli(fd, "%s\n",status);
  		ast_cli(fd, "  Useragent    : %s\n", peer->useragent);
  		ast_cli(fd, "  Reg. Contact : %s\n", peer->fullcontact);
+		ast_cli(fd, "  Qualify Freq : %d seconds\n", peer->qualifyfreq/1000);
 		if (peer->chanvars) {
  			ast_cli(fd, "  Variables    :\n");
 			for (v = peer->chanvars ; v ; v = v->next)
@@ -11685,6 +11686,7 @@
 		astman_append(s, "%s\r\n", status);
  		astman_append(s, "SIP-Useragent: %s\r\n", peer->useragent);
  		astman_append(s, "Reg-Contact : %s\r\n", peer->fullcontact);
+		astman_append(s, "Qualify Freq : %d seconds\n", peer->qualifyfreq/1000);
 		if (peer->chanvars) {
 			for (v = peer->chanvars ; v ; v = v->next) {
  				astman_append(s, "ChanVariable:\n");
@@ -13971,7 +13973,7 @@
 
 	/* Try again eventually */
 	peer->pokeexpire = ast_sched_replace(peer->pokeexpire, sched,
-		is_reachable ? DEFAULT_FREQ_OK : DEFAULT_FREQ_NOTOK,
+		is_reachable ? peer->qualifyfreq : DEFAULT_FREQ_NOTOK,
 		sip_poke_peer_s, peer);
 }
 
@@ -17947,6 +17949,7 @@
 	/* If we have realm authentication information, remove them (reload) */
 	clear_realm_authentication(peer->auth);
 	peer->auth = NULL;
+	peer->qualifyfreq = 60 * 1000;
 
 	for (; v || ((v = alt) && !(alt=NULL)); v = v->next) {
 		if (handle_common_options(&peerflags[0], &mask[0], v))
@@ -18137,7 +18140,14 @@
 				ast_log(LOG_WARNING, "Qualification of peer '%s' should be 'yes', 'no', or a number of milliseconds at line %d of sip.conf\n", peer->name, v->lineno);
 				peer->maxms = 0;
 			}
-		} else if (!strcasecmp(v->name, "maxcallbitrate")) {
+		} else if (!strcasecmp(v->name, "qualifyfreq")) {
+			int i;
+			if (sscanf(v->value, "%d", &i) == 1)  {
+			peer->qualifyfreq = i * 1000;  } else {
+				ast_log(LOG_WARNING, "Invalid qualifyfreq number '%s' at line %d of %s\n",v->value, v->lineno, config);
+			}
+		}
+		else if (!strcasecmp(v->name, "maxcallbitrate")) {
 			peer->maxcallbitrate = atoi(v->value);
 			if (peer->maxcallbitrate < 0)
 				peer->maxcallbitrate = default_maxcallbitrate;