Discussion List for Freenum/ITAD Subscriber Number (ISN) Project

["Jonathan Cohen" <>]

Hi,

Hope this is a good place to post this and apologies if this a really silly 
question. I've got ISN dialling working fine to our Asterisk gateway and 
inbound/outbound calling works fine, however there's a bit of a problem....

One of our aims is to provide telephone access to areas such as Africa where 
a conventional fixed network is not available or is very expensive/poor 
quality. Internet connectivity can be rigged using WiFi etc and VoIP is a 
natural progression. We take existing old PBXs, telephones etc and link them 
together using low cost gateways or ATAs. The problem is that much of the 
end user equipment is only capable of pulse dialling and therefore can't 
dial the * symbol in the dialplans.

For the moment I've created a dialplan that assumes the last three digits of 
a number are the ITAD but obviously once ITADs are longer than three digits 
this won't scale. For example users would dial:

2002233*329
as
000 2002233 329 (or possibly 000 329 2002233 in a more conventional format)

What I can't find anywhere is a recommendation on how this should be 
handled, since the variable number length and potentially variable ITAD make 
dialling separation almost impossible.

Rgds
Jonathan Cohen


2002233*329