VoiceTel

Documentation / Voice

Everything you need to run Voice on VoiceTel.

Voice covers wholesale origination and termination, the v2.2 REST API for account management, E911 provisioning, number workflows, and SIP integrations with the PBXes, SBCs, firewalls, and phones engineering teams actually deploy. This hub indexes the product overview, REST surface, and configuration guides under one page.

Voice product API playground

Product and pricing

  • Voice product overview

    Wholesale origination + termination, signed media, AMD, recording, and the operational model for engineering-led teams.

  • Pricing and calculator

    Per-minute inbound and outbound rates, toll-free, number monthlies, and a calculator that applies volume-tier discounts to your workload.

REST API and SDKs

  • v2.2 API playground

    Spec-driven, in-browser playground for the v2.2 REST surface — call live endpoints with your account credentials and inspect headers and JSON responses.

  • v2.2 credentials

    Generate or rotate the API credentials the v2.2 endpoints (and the playground) authenticate against.

  • VoiceTel SDKs

    Official client libraries for the VoiceTel REST API in Python, TypeScript, Go, Java, Kotlin, Scala, PHP, Ruby, C#, Rust, Swift, and Lua — plus CLI and Postman/Bruno collections.

Numbers, emergency, and SIP

  • Numbers

    Local, toll-free, and mobile-number provisioning, porting, caller ID, CNAM, and routing workflows.

  • E911 provisioning

    Validate addresses against the ALI database and bind E911 records to your numbers via the v2.2 REST API or guided portal form.

  • SIP Trunking

    Carrier-grade SIP trunks with Anycast/Geocast access, Digest + IP auth, and PBX/SBC/firewall guides.

  • SDN appliance

    Plug-and-play SIP traversal appliance for sites with strict firewalls or NAT issues.

Configuration guides

Per-device and per-platform setup, troubleshooting, and known-good configurations from the support knowledge base.

  • PBX

    3CX, FreePBX, FusionPBX — registration, trunks, route patterns, and known-good dial plans.

  • SBC

    Asterisk, AudioCodes, Cisco CUBE, FreeSWITCH — session border controller wiring and SIP normalization.

  • Desk phones

    Avaya, Cisco MPP, Fanvil, Grandstream, Mitel, Poly, Polycom, Sangoma, Snom, Yealink — provisioning and registration.

  • Softphones

    Bria, Linphone, MicroSIP, Zoiper — endpoint config for laptop and mobile SIP clients.

  • Firewall

    Asus, cable modem, FortiGate, Netgear, pfSense, SonicWall, UniFi — SIP ALG and SIP-aware NAT guidance.

  • SIP trunking troubleshooting

    Authentication, DID routing, registration drops, IP-termination prefixes, From-tag pitfalls, IP allowlisting.

  • Porting

    Porting procedure, PIN retrieval, and the port-out-PIN workflow.

  • Fax

    Electronic faxing setup and constraints for fax-over-IP workloads.

  • Compliance

    Voice-side compliance topics relevant to operators integrating with VoiceTel.

The full support index lives at /support/voice/ and is the canonical entry point for new troubleshooting articles.

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