[VladS]

Originally Posted by ronwi

I am aware that their are other companies that do not charge extra for calls to Lyca - for example, Voipyo, a Betamax company, charges .5 Euro cents per minute. However, they do not offer DIDs with easy forwarding, and even if I set up a forward with my Asterisk it would not carry the CID information.

Betamax retail brands are outbound CID locked - you can either use pre-registered outbound CIDs or no CID, there's no option for per call outbound CID. Even some of their semi-wholesale brands, such as Siptraffic are inconsistent when it comes to CID.

Look around for a provider with either TDM or quality IP interconnects and your CID will work fine.

Originally Posted by ronwi

My working hypothesis is that the regulated mobile termination rates only apply to certain types of call (perhaps mobile only) and that some of the carriers can route their calls to be eligible for the regulated rates (or appear to eligible for the rates), and some cannot.

Here's the Ofcom regulated prices page: http://media.ofcom.org.uk/analysts/regulated-prices/

For these rates to apply, you need wholesalers with direct local interconnect. Those using third party or international interconnects will obviously be higher.