Welcome to DDI Gateway
The Virtual Numbers
Why Would I Use a DID Number?
The advent of Direct Inward Dialing (DID) services provides people with access to local telephone numbers in most countries on a worldwide basis. These numbers are then forwarded by companies such as DDI Gateway to PSTN (Plain Old Telephone System), VoIP or VoIM devices anywhere in the world. Essentially, this means that:
1. International and long distance telephone calls are made with the caller only paying local call rates. For example, your family lives in Moscow, Russia but you live in Toronto, Canada. You would like your family to be able to phone you, but the long distance rates from Russia are very costly. If you purchase a Moscow DID, anyone dialing that local number in Moscow would connect to your phone in Toronto, but they would pay only local phone number rates.
2. You are able to add telephone numbers to your phone line so that you are no longer restricted to one telephone number per line. For example, you live in Toronto, Canada but you have family in Moscow, London and Beijing. If you purchase DID numbers in Moscow, London and Beijing, then anyone dialing those local numbers would connect to your phone in Toronto.
3. Conventional telephone calls may be terminated at non-PSTN devices if desired, for example VoIP, or GTalk. This has particular relevance for VoIP communications, as it allows people connected to the traditional PSTN network to call people connected to VoIP networks
4.Over and above these basic functions of DIDs, there are many additional uses for local numbers. For example, consider the issue of privacy. If users place classified advertisements in a newspaper and they wish prospective buyers to contact them without publishing their own, private telephone number, a temporary local number could be provided by the newspaper.