[asterisk-users] Can incoming alternate rings be discriminated?

[Warren (mailing lists)]

FYI: If you get no help here and want to search, in the US this is
called "Distinctive Ring".

W

Paul Lakra wrote:
> 
> In the UK I have 'Call sign' from BT on my house POTS line. This gives
> two different nos. to call the same physical line. One no. gives the
> usual UK ring-ring, ring-ring, etc. pattern. The other no. gives a
> ring,ring,ring north American style of ring. I would like to be able to
> detect the ring pattern and route the calls differently after Asterisk
> answers them.
> 
> Just for reference, Call Sign is often used for a separate no. for a fax
> machine and hardware boxes are available for about £40 (when I last
> looked - may be cheaper now) to split the line into 2. I would also need
> an additional FXO/FSO port. Would be nice to do it natively in Asterisk.