[Asterisk-Users] Re: [Asterisk] phones being autoanswered?

[Petr Mich�lek]

Matteo Brancaleoni wrote:

Hi.

I'm experiencing a strange issue with *.
I have a dev kit, aka a T100P + a zhone cb.
Sometimes, on certains phones (on the fxo ports
of the cb) , when the phone rings, * detect
it as answered after the first ring, even
if no one is at the phone!
The result is that on the other party (which
called the phone) hears only silence.
(since the caller is bridged with an on-hook
phone, but is detected as off-hook)
The problem is that I can't reproduce it,
it happens randomly. The debug logs report
the same as if the channel was normally answered.
Any hint ?

 

This patch should work...

Regards

Petr Michalek
diff -u -r ./zaptel/zaptel.c ./astmodules/zaptel/zaptel.c
--- ./zaptel/zaptel.c   Sun Mar  2 22:03:21 2003
+++ ./astmodules/zaptel/zaptel.c        Sun Mar  2 22:05:50 2003
@@ -4325,6 +4325,12 @@
 void zt_rbsbits(struct zt_chan *chan, int cursig)
 {
        if (cursig == chan->rxsig)
+       {
+           chan->rxsigtimer=0;
+           return;
+       }
+       
+       if( chan->rxsigtimer++ < ZT_RXSIGTIME && (chan->txstate == ZT_TXSTATE_RINGON 
|| chan->txstate == ZT_TXSTATE_RINGOFF) )
                return;
 
        switch(chan->sig) {
@@ -4370,6 +4376,7 @@
        }
        /* Keep track of signalling for next time */
        chan->rxsig = cursig;
+       chan->rxsigtimer=0;
 }
 
 void zt_ec_chunk(struct zt_chan *ss, unsigned char *rxchunk, const unsigned char 
*txchunk)
diff -u -r ./zaptel/zaptel.h ./astmodules/zaptel/zaptel.h
--- ./zaptel/zaptel.h   Sun Mar  2 22:03:24 2003
+++ ./astmodules/zaptel/zaptel.h        Sun Mar  2 22:08:51 2003
@@ -756,6 +756,8 @@
 #define        ZT_KEWLTIME 500         /* 500ms for kewl pulse */
 #define        ZT_AFTERKEWLTIME 300    /* 300ms after kewl pulse */
 
+#define        ZT_RXSIGTIME 30         /* 30??(loops) for prevent "autoanswer" */
+
 #define ZT_MAX_SPANS           128             /* Max, 128 spans */
 #define ZT_MAX_CHANNELS                1024    /* Max, 1024 channels */
 #define ZT_MAX_CONF                    1024    /* Max, 1024 conferences */
@@ -946,6 +948,7 @@
        int gotgs;
        int txstate;
        int rxsig;
+       int rxsigtimer;
        int txsig;
        int rxsigstate;