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Numbers & SIP trunks

Connect carrier numbers and SIP trunks to your phone system, checking availability, number portability and usage requirements.

PSTN connectivity for inbound/outbound calls.
Ensuring multi-channel communication.
Using geographic numbers for local presence.

IMPLEMENTATION

Two ways to build.

The same business task. Infrastructure that fits your data policy, team and budget.

01 / ON-PREMISES

Own hardware

Configure your network edge and carrier interconnection.

How we implement it

Installing and configuring OpenSIPS/SBC.
Contracting with a licensed telecommunications carrier.
Setting up a backup SIP trunk for redundancy.

Technology options: OpenSIPS or an SBC, SIP trunks from approved carriers.
Data & dependencies: Routes and logs are controlled locally; external call media and signalling pass through the carrier.
Budget components: SBC, interconnection and failover testing; then number/channel rental, minutes and support.
Operations & support: The support agreement assigns ownership of hardware, OS, applications, updates and incident response. Recovery is tested before launch.

Discuss this option ↗

02 / API PLATFORMS

International APIs

Manage numbers and trunks through APIs where eligible for your country and business.

How we implement it

Check country, number type, documentation and Twilio/Telnyx availability.
Agree porting or provisioning and configure SIP.
Set spending, destination and concurrency limits.

Technology options: Twilio/Telnyx API, SIP trunks.
Data & dependencies: External services process audio and necessary metadata. Before launch we review each component’s region, subprocessors, retention and deletion settings.
Budget components: Integration and number eligibility checks; then number rental, traffic and optional provider features.
Operations & support: The provider operates its platform; the project team maintains integrations, quotas and API changes within the agreed scope. Support coverage is defined by contract.

Discuss this option ↗

Technology choices are confirmed after an assessment. Platform names indicate implementation options, not partnership status. Calls to the public telephone network require a carrier in either model.

BEFORE LAUNCH