Phone System Feature
Bring your own carrier.
Connect your own
systems.
Keep the carrier you have and bring its lines into Hipcall, or send calls from a Hipcall number to your own PBX or an AI voice agent. Either way, the calls show up in one call history.
Your PBX
Vapi
Retell AI
Why it matters
Keep your carrier and your rates
Connect a line from your current SIP provider with its host, port, and credentials. Your numbers and your contract stay where they are.
Connect AI voice agents
Link a number to Vapi, Retell AI, or ElevenLabs. The agent answers; Hipcall records the call and can pass it to your team.
Keep the PBX you are not ready to replace
Send calls from a Hipcall number to your existing PBX while you move teams over one at a time.
Every connection has an extension
A SIP connection gets its own extension, so a menu, a team, or a forward can send calls to it.
How It Works
Set up in four steps
- 1
Choose the direction
Bring a carrier's number in, or send a Hipcall number's calls out to a system.
- 2
Enter the SIP details
For a carrier: host, port, and credentials. For a connection: a username and generated password, plus the termination URI.
- 3
Give it an extension
Use the extension in menus, teams, or forwarding.
- 4
Manage it by API if you like
SIP connections can also be created and changed over the REST API.
Use Cases
After-hours AI agent
Out of hours, a clinic's number goes to a Retell AI agent that books appointments; urgent callers are passed to the on-call doctor.
Gradual move
A company keeps its old PBX for the warehouse while sales and support move to Hipcall.
Own carrier, Hipcall features
A company keeps its negotiated carrier contract and uses Hipcall for menus, queues, and recording.
FAQ
Frequently asked questions
Yes. SIP connections are available on all plans.
Any agent that accepts SIP calls. Vapi, Retell AI, and ElevenLabs have guides on our integrations page.
Yes, like any other call, if recording is on for that direction.
Your carrier bills you as it does today.
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