[Asterisk-Users] Multiple DDI & Hunting on Analog Lines (UK)

Julien Levi jules at jlevi.co.uk
Mon Jun 7 08:46:25 MST 2004

Matt wrote:
> Hi everyone,
> I want to get multiple DDI's and hunting across those DDI's in case one of the lines is busy using analog phone lines.  The system is for a large house so I want 3 x PSTN lines.  3 x DDI's and the ability for those DDI's to be presented across all three PSTN lines.
> BT say you can't have more than one DDI number associated with a PSTN line and that you can't hunt across analog lines.

Line hunting across analog lines is possible and it is free. BT call it 
Auxiliary working. Take a look at this page:


It's not something they often do on home lines so be prepared for sales 
staff who don't know what they are talking about.

DDI on analog lines is more complicated and I believe there is a set-up 
charge of over £1000 (see 
) If you must have multiple numbers you'd be better off with an isdn line.



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