The Operational Value of DID Numbers

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Potential customers are not very likely to dial an overseas number to make an inquiry—even calling numbers in other areas within the same country can prove expensive in some cases. However, many people get free local calls with their phone plans, so having a location in a large city effectively gives a company a freephone (or “toll free”) number.


The ability to substitute india telegram local numbers for toll free numbers is the tip of the iceberg. Toll free numbers are just a reverse charge technique. Someone has to pay for those callers, and retailers choose to absorb the constant freephone bills as a marketing cost. However, with DID numbers, the caller may just have to pay for a local call and there is no charge for the business that receives that call.

Companies that buy DID numbers use them in conjunction with VoIP telephone services. A cloud-based PBX that forms part of the VoIP service enables the number’s owner to direct calls made to it onto a specific device. It doesn’t matter where in the world that device is—the owner just needs to have an internet connection and a VoIP service subscription. There usually aren’t any per-call charges levied by these VoIP services, so receiving calls becomes virtually free.

As such, it’s very easy to have a New York number and have calls to it channeled to a call center in India. Offshore call centers cut operational costs drastically. However, without a DID number offering a local number, New Yorkers are less likely to call telephone operators in Mumbai. Add on a number in Chicago, another in Miami, one in Los Angeles, one in Dallas, and another in San Francisco and you have a presence in all of the major US population centers without having to pay the high rents for offices in those locations.