[Asterisk-Users] Please help, Zap channel hangup TE405P

[justiceguy at pobox.com]

I was able to find the answer.  By using the Answer with a 
priority of 1 before the Dial, the call signalling is setup 
properly.


On Sat Jan 29 15:51:22 PST 2005, justiceguy at pobox.com wrote:

> Asterisk experts,
> I have been pulling my hair out troubleshooting what appears to 
> be a Zap channel disconnect on the TDM side.  I am trying to have 
> an inbound call on a T1 zap channel on the TE405P from our Harris 
> switch automatically dial a SIP channel.  Any help appreciated 
> very appreciated.
> 
> When the call in extensions.conf executes the demo-congrats:
> exten => 2145551234,1,playback(demo-congrats)
> 
> I hear the demo - success.
> 
> When the call in extensions.conf tries to automatically dial a 
> SIP channel:
> exten => 2145551234,1,Dial(SIP/100)
> 
> Asterisk sends an IVITE to the phone followed by an immediate 
> CANCEL.  Asterisk console debug looks like the Zap Channel is 
> hanging up.
> 
> So my question is:  Is this how inbound calls from a switch need 
> to automatically dial to a SIP channel, or does the call need to 
> be answered in some other way, and then execute the Dial command? 
>  Does anyone please have any pointers, or example configuration 
> for this kind of call scenario?
> 
> It is as if the signalling is not correct and the Harris is not 
> getting some kind of wink signal when I try to Dial SIP, and the 
> Harris hangs up the call, but when the demo playback executes, 
> the Harris gets the right signal.  Can Asterisk actually debug 
> the Zap channel to see where the call hangup is coming from, and 
> if so, how?
> 
> Or maybe my zapata / zaptel configuration is not correct for this 
> kind of call scenario.  Here is the relevant config:
> zapata.conf:
> context=Provider_T14
> signalling=sf_featdmf
> group=4
> channel => 73-96
> 
> zaptel.conf:
> span=1,0,0,esf,b8zs
> #span=2,1,0,esf,b8zs
> span=2,0,0,esf,b8zs
> span=3,0,0,esf,b8zs
> span=4,0,0,esf,b8zs
> 
> e&m=1-24
> e&m=25-48
> e&m=49-72
> e&m=73-96
> 
> 
> 
> 
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