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SIP REST Webhooks

Integrations

There are three doors into this network: a SIP registration, an IP-authenticated trunk, or an HTTPS request. Everything below is one of those three, described specifically.

How a system connects

Pick the door that matches what you run. Most accounts end up using two of the three.

SIP registration

A username and a password, refreshed on an interval. Works from behind NAT and from dynamic addresses, which is why desk phones, softphones, and small PBXs use it. Per-trunk credentials, per-trunk access control list.

IP authentication

You give us the source addresses your traffic comes from and we allowlist them at the edge. The right choice for softswitches, proxies, and anything carrying volume, because there is no registration to expire.

REST API and webhooks

Bearer-token requests over HTTPS to provision numbers, originate calls, send messages, and query CDRs, with signed webhook deliveries coming back for call progress, recordings, transcripts, and receipts.

Everything named on this page describes protocol-level compatibility. It is not a claim of a partnership, a certification, a reseller agreement, or a marketplace listing with any vendor mentioned.

Collaboration

Microsoft Teams connects by Direct Routing, so PSTN calling arrives inside the client your users already have.

  • Direct Routing, not a bolt-on client. Calls are placed and answered in Teams. Users do not learn a second application.
  • Your numbers, ported or new. Existing DIDs port in and are assigned to Teams users; new ones are provisioned by API.
  • Per license, per month. Connectivity is billed per enabled license, and the calls and messages themselves rate at the published per-minute and per-message rates.
  • Mixed estates are normal. Teams for the office and a hosted PBX or SIP endpoints elsewhere, on one account and one invoice.
Teams voice connectivityPer enabled license, per month from $4.50
Teams messagingPer enabled license, per month from $2.00
Calls and messagesRated at the published card, on top of the license fee usage

Contact center and dialer platforms

This is the category the network was built for. AgentTech Dialer runs its production insurance calling on these rails, and Solved Telephony owns AgentTech Dialer, so the routing primitives here were designed against real dialer traffic rather than imagined from a spec.

Platforms in this category usually take the trunk for media, the API for provisioning, and the routing engine for bidding, caps, and skills. White-label is the default: your customers see your product.

A monitor wall showing live call queues in a dark office

FAQs

Integration questions

Does naming a system here mean you have a partnership with its vendor?

No. Everything on this page describes protocol-level compatibility: the system speaks SIP, or it can call a REST endpoint, or it can receive a webhook. None of it is a claim of a partnership, a certification, a reseller agreement, or a marketplace listing with any vendor named.

Do I need a developer to connect?

Not for a trunk. Pointing Asterisk, FreeSWITCH, FreePBX, 3CX, or any RFC 3261 endpoint at us is configuration, and a working example is in the documentation. You need a developer when you want provisioning, routing, and reporting to happen inside your own product, which is what the REST API and webhooks are for.

Can my users see that you are underneath?

Only if you want them to. White-label is normal here: numbers are provisioned under your brand, IVR and queue prompts are yours, and CDRs come back split by your own tenant identifiers. Most platform customers run entirely without our name appearing.

Is there a charge for the API, webhooks, or CDR exports?

No. The API, webhook delivery, and scheduled CDR exports are part of the account rather than an integration tier. You pay published rates for the usage they generate: minutes, messages, numbers, recording, transcription, and agent talk time.

What does Microsoft Teams cost?

Teams voice connectivity starts at $4.50 per license per month and messaging at $2.00 per license per month, on top of the standard per-minute and per-message rates for the traffic itself. Direct Routing is the connection method, so Teams users keep the client they already have.

Can an AI agent framework drive calls directly?

Yes. An agent runtime can originate calls, attach to inbound calls, and read recordings and transcripts over the REST API, and receive call progress as webhooks. An agent that speaks the Model Context Protocol can treat those endpoints as tools. If you would rather not build the runtime, our managed AI Voice Agents bill at $0.10 per minute of talk time.

Something else? Contact us

Tell us what you run.

Bring the system you already have and we will tell you which of the three doors fits it.