[Asterisk-Users] Dial ZAP with group (g2) erroneously says call answered when it is still ringing

[James B. MacLean]

Hi C F,

I am not well versed in this level of telephony or Asterisk, so please 
bare with me :).

My setup is really typical. Bought the digium card with 4 ports. 2 fxs / 
2 fxo. The 2 fxo's are connected directly to phones, belong to group 1 
according to zapata.conf, and exist as "fxoks=1-2" in /etc/zaptel.conf.

The 2 fxs ports are connected to the telco, belong to group 2 according 
to zapata.conf, and are setup as "fxsks=3-4" in zaptel.conf.

Dial(Zap/1/8888&SIP/8888 at 8888,15,r) works as expected,
Dial(Zap/2/8888&SIP/8888 at 8888,15,r) works as expected

but:

Dial(Zap/g2/8888&SIP/8888 at 8888,15,r) Rings once and reports answered to 
Asterisk.

Does this support what you are explaining? I'm honestly confused by how 
an fxs module operates as an fxo module?

Thanks for any more direction you might have,
JES

C F wrote:

>I'm going to guess here that the problem is *not* related to using the
>g. It just happnes to be that on your asterisk system when you use g2
>it rings to an FXO module while when using channel 2 on the zap
>interface you are calling an FXS channel. Please correct me if I'm
>wrong.
>Zap FXO modules will consider themselfs answered as soon as it goes of
>hook (as this is realy called answered, since all the signalling is
>done inband), as will FXS modules, but FXOs are meant to call ppl
>using in band signalling, and that is what tells you (the caller) if
>the person answers or not, but because it uses in band signalling it
>is actualy answred as soon as you pick up the phone (just like your
>ananlog handset that is plugged into an FXS module *answers* the line
>as soon as it goes off hook, even though it is just trying to make a
>phone call). The only way to work this around is if you use c in the
>dial command for the zap channel, but then the called person has to
>press # to connect the call.
>Hope this helps.
>
>On 11/22/05, James B. MacLean <macleajb at ednet.ns.ca> wrote:
>  
>
>>Hi Folks,
>>
>>Took some effort to even realize what was happening and I did not find
>>anything obvious in the archives or FAQs to explain it.
>>
>>Simply put, if I have a dial plan that dials to a specific ZAP line (ie
>>exten => _XXXX,n,Dial(Zap/2/${calling}&SIP/${calling}@${calling},15,tr))
>>then both the SIP and the ZAP are called and ZAP keeps reporting
>>"ringing" until they are answered or a timeout occurs. This is the
>>correct expectation as I understand it.
>>
>>But... When I change the ZAP channel to use a group (ie exten =>
>>_XXXX,n,Dial(Zap/g2/${calling}&SIP/${calling}@${calling},15,tr)) then I
>>always get something like :
>>
>>    -- SIP/8438-37ca is ringing
>>    -- Zap/3-1 answered SIP/8438-be27
>>
>>Even though the Zap channel is _not_ answered. The phone does keep
>>ringing and I can complete the call if I pick up the phone.
>>
>>So using single channels (either of the 2 I use) works, but together in
>>a group gives me these results. I am using the latest CVS of everything.
>>
>>Any explanation, workaround greatly appreciated :),
>>JES
>>    
>>

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