Virtual numbers for SaaS and CPaaS platforms: provisioning numbers by API

Contact-centre software, CRMs with calling, call-tracking tools and CPaaS platforms all have the same need: give each customer phone numbers, instantly, in many countries. That turns numbers from a purchase into infrastructure.

What platforms need from a number supplier

Coverage. Local, national, toll-free and, where possible, mobile numbers in the markets your customers sell into. Gaps force you onto multiple suppliers and multiple integrations.

Programmatic provisioning. Search, reserve, buy, configure and release numbers by API, without tickets. Search by country, type, area code and capability (voice, SMS).

Routing control. Point numbers at your SIP infrastructure and change routing per number in real time.

Compliance handled in the flow. Many countries require end-customer verification. Your supplier should expose each number’s requirements and accept documents by API, so you can collect them in your own onboarding.

Portability. Your customers will want to bring numbers in and take them out. Porting support protects your customer relationships.

Wholesale economics. Volume pricing, predictable monthly fees and clear per-minute rates so you can price your own product.

Architecture tips

  • Store numbers in E.164 everywhere. See E.164 explained.
  • Keep a number inventory per tenant with its compliance status, so you never route traffic on a number that isn’t verified.
  • Build a release policy. Don’t immediately recycle numbers your customers drop. A cooling-off period avoids misdirected calls.
  • Monitor number reputation if your customers make outbound calls. See caller ID and spam labels.

Why a licensed operator matters

Buying from a licensed operator with its own numbering allocations and interconnects, rather than a reseller of resellers, means better call quality, faster porting and clear accountability when something goes wrong. DIDNumbers is operated by Intergo Telecom, a licensed operator running its own voice and messaging platform.

Frequently asked questions

Can you supply numbers wholesale to our platform?

Yes. Carriers, CPaaS and UCaaS platforms can buy wholesale DID inventory with SIP interconnect. Talk to wholesale.

Can we white-label the customer experience?

The numbers and routing are delivered to your platform, so your customers deal with your brand.

Talk to our wholesale team