Quote:
Originally Posted by DRNewcomb
I think it may have something to do with the willingness of the telecoms administration to set up a special termination rate for a particular group of mobile numbers, or perhaps that there is already a high termination rate. I believe that this may be the case in both Man and Jersey with the added benefit that most international carriers lump them in with UK so that the impact of the higher rate is diluted.
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Yes, I agree with you that the high termination rate is the key factor that makes the whole "free incoming roaming" profitable.
But then there is another question, related to "particular group of mobile numbers" - why don't telecoms which provide roaming agreements for international SIMs don't offer the same free incoming calls (and low outgoing rates when abroad) to their "home" customers, neither postpaid nor prepaid ones? E.g. Manx Telecom customers can enjoy free incoming calls in English-language European countries only (UK, Ireland, Channel Islands).
My supposition is they can't do this because termination fees are applicable only for off-net calls (incoming from other operators) whereas the customers pay for their on-net minutes much below the termination fee. Let's say the operator charges 20 cents/min for incoming off-net calls and, thanks to this rate it can pass up to 15 cents/min to pay the termination of the call in the roaming partner's network. That's why it is able to offer free incoming calls in any roaming network with termination rate <=15 cents/min. But if the operator serves also on-net calls which due to number of inclusives minutes, lower per minute rates, packets, rebates etc. bring to it on average 10 cents/min only. In order to offer free incoming calls in roaming everywhere it costs <=15 cents to terminate, it would have either raise the on-net rates or subsidise its own customers.
To summarise, I think that high termination rate is not enough. Another necessary condition is that all (or almost all) calls to international SIMs are off-net calls or least they are charged as off-net calls. BTW, I wonder if e.g. calls from "local" +44 7624 SIMs to "international" ones are charged at on-net or off-net rates?