[asterisk-users] Call signalling on BT FeatureLine Compact (Sangoma A200)

[Gordon Henderson]

On Tue, 18 Mar 2008, Paul Goodyear wrote:

> Hi,
>
> I have a TrixBox install with a Sangoma A200 and 4 FXO ports, there
> are 3 BT lines connected directly to these ports.
>
> One of the lines has BT FeatureLine Compact and this is the line I am
> having problems with, the other 2 lines are working perfectly,
> detecting CID, answering incoming calls and placing external calls via
> SIP devices.
>
> I am receiving a error log entry:
>
> chan_zap.c: Ring/Off-hook in strange state 6 on channel 1
>
> Incoming calls are detected by asterisk, however answering the SIP
> devices does not answer the call, and placing a call via line one does
> nothing, just silence.
>
> I contacted BT about it (I know, what was I expecting!) they informed
> me that I must use the number 9 to access a external number! I have
> asked them to pass it to the technical department to see if they have
> any input.
>
> Is there someother signalling I should be using to detect the incoming
> calls on a BT FeatureLine? I have tried Groudstart but asterisk fails
> to load chan_zap due to:
>
> Mar 18 14:01:26 ERROR[28951] chan_zap.c: Signalling requested on
> channel 1 is FXS Groundstart but line is in FXS Kewlstart signalling
> Mar 18 14:01:26 ERROR[28951] chan_zap.c: Unable to register channel '1'
>
> Any help, or ideas on what to try?

Mark it down to experience.

BT nearly always try to sell featureline on business lines these days. 
"Would sir like a 3 of 5 year feature line contract"?

When what you really wanted was just 3 lines in a hunt-group on a single 
number (possibly, I don't know exactly what you want)

As for signalling, it's no different on the feature line to any other BT 
POTS line, you just need to prefix outgoing calls with '9'. Why you got 
featureline on one line and not the other 2 is odd to me, but that's BT 
saledroids for you....

So for the dialling issues, I'd suggest a trixbox list/forum to start 
with, but if that fails, then you'll need to post your configs here - 
zapata.conf, zaptel.conf, etc. to start with, then the dialplan to carry 
on with...

But before you go any further, I'd suggest going to Argos and getting 1 or 
2 standard £1.99 analogue phones and plugging them in and test the lines 
with the phones first...  Just in-case.. Stranger things have been know to 
happen.... (Then again, this is BT and I'm now no-longer surprised when 
thing's aren't quite to plan...)

Good luck,

Gordon
(Also in the UK, facing similar fristrations with BT at times too!)