--- asterisk-1.4.26-orig/channels/chan_sip.c    2009-07-10 19:39:13.000000000 +0200
+++ asterisk-1.4.26/channels/chan_sip.c 2009-08-14 12:58:53.000000000 +0200
@@ -230,6 +230,7 @@
 };
 static struct ast_jb_conf global_jbconf;
 
+static int default_freq_ok = DEFAULT_FREQ_OK;
 static const char config[] = "sip.conf";
 static const char notify_config[] = "sip_notify.conf";
 
@@ -1141,6 +1142,7 @@
        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;              /*!<  Ping send time */
 
        struct sockaddr_in defaddr;     /*!<  Default IP address, used until registration */
@@ -10966,6 +10968,7 @@
                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)
@@ -11039,6 +11042,7 @@
                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");
@@ -11191,6 +11195,7 @@
                ast_cli(fd, "  SIP realtime:           Disabled\n" );
        else
                ast_cli(fd, "  SIP realtime:           Enabled\n" );
+       ast_cli(fd, "  Qualify Freq :          %d\n", default_freq_ok/1000);
 
        ast_cli(fd, "\nGlobal Signalling Settings:\n");
        ast_cli(fd, "---------------------------\n");
@@ -13124,7 +13129,8 @@
 
        /* Try again eventually */
        peer->pokeexpire = ast_sched_add(sched,
-               is_reachable ? DEFAULT_FREQ_OK : DEFAULT_FREQ_NOTOK,
+// old:                is_reachable ? DEFAULT_FREQ_OK : DEFAULT_FREQ_NOTOK,
+               is_reachable ? peer->qualifyfreq : DEFAULT_FREQ_NOTOK,
                sip_poke_peer_s, ASTOBJ_REF(peer));
 
        if (peer->pokeexpire == -1) {
@@ -17652,6 +17658,7 @@
        /* If we have realm authentication information, remove them (reload) */
        clear_realm_authentication(peer->auth);
        peer->auth = NULL;
+       peer->qualifyfreq = default_freq_ok;
 
        for (; v || ((v = alt) && !(alt=NULL)); v = v->next) {
                if (handle_common_options(&peerflags[0], &mask[0], v))
@@ -17859,7 +17866,14 @@
                        peer->maxcallbitrate = atoi(v->value);
                        if (peer->maxcallbitrate < 0)
                                peer->maxcallbitrate = default_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);
+                       }
                }
+
        }
        if (!ast_strlen_zero(fullcontact)) {
                ast_copy_string(peer->fullcontact, fullcontact, sizeof(peer->fullcontact));
@@ -18007,6 +18021,7 @@
        global_notifyhold = FALSE;
        global_alwaysauthreject = 0;
        global_allowsubscribe = FALSE;
+       default_freq_ok = DEFAULT_FREQ_OK;
        ast_copy_string(global_useragent, DEFAULT_USERAGENT, sizeof(global_useragent));
        ast_copy_string(default_notifymime, DEFAULT_NOTIFYMIME, sizeof(default_notifymime));
        if (ast_strlen_zero(ast_config_AST_SYSTEM_NAME))
@@ -18298,6 +18313,13 @@
                        }
                } else if (!strcasecmp(v->name, "callevents")) {
                        global_callevents = ast_true(v->value);
+               } else if (!strcasecmp(v->name, "qualifyfreq")) {
+                       int i;
+                       if (sscanf(v->value, "%d", &i) == 1) {
+                       default_freq_ok = 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")) {
                        default_maxcallbitrate = atoi(v->value);
                        if (default_maxcallbitrate < 0)