ElevenLabs Agents on a Jamaican Number: SIP Trunk Setup with WOCOM

ElevenLabs made its name with lifelike synthetic voices. Its Agents platform (formerly Conversational AI) turns those voices into an assistant that can hold a conversation, follow your instructions, look things up and pass a call to a person. With a SIP trunk, that agent can answer your existing Jamaican business number.

ElevenLabs does not issue Jamaican numbers. You bring the number, and WOCOM carries the calls between the public phone network and ElevenLabs. Here is how to connect them.

What You Need

• A WOCOM number on Cloud PBX or a SIP trunk.
• An ElevenLabs account with an agent already built and tested in the browser.
• Agreement on transport: TCP on port 5060 or TLS on port 5061. ElevenLabs lists UDP as experimental and for testing only, so production lines should use TCP or TLS.

Step 1: Import Your Jamaican Number into ElevenLabs

1. In the ElevenLabs dashboard, open Phone Numbers → Import number → From SIP Trunk.
2. Give it a label (for example “Main line – Kingston”) and enter the number in E.164 form: +1876XXXXXXX. The + matters, because ElevenLabs matches incoming calls against this exact string.
3. Inbound settings: choose Media Encryption (Disabled, Allowed or Required). If you use TCP or TLS, you can also restrict Allowed Source IP Addresses to WOCOM's signalling addresses, which WOCOM support will give you. You can add a digest username and password as an extra check.
4. Outbound settings (only if the agent will place calls): enter the WOCOM gateway address without a sip: prefix, the transport, and the SIP username and password WOCOM issues for your trunk.
5. Click Import, then Assign Agent to choose which agent answers this number.

Step 2: Ask WOCOM to Route the Number

Send WOCOM support the following:

• The Jamaican number(s) you want answered by the AI, written in E.164 form (for example +1876XXXXXXX or +1658XXXXXXX).
• The platform's SIP address for inbound calls (shown below for this platform).
• Whether the AI also needs to place outbound calls, and from which number.
• Where calls should go if the AI hands a caller to a person: an extension, a ring group, or a mobile number.

For ElevenLabs, WOCOM sends each call to an address that carries your number before the @:

sip:+1876XXXXXXX@sip.rtc.elevenlabs.io:5060;transport=tcp
or, with encryption:
sip:+1876XXXXXXX@sip.rtc.elevenlabs.io:5061;transport=tls

Audio flows over UDP ports 10000–60000. On Enterprise plans ElevenLabs can provide fixed regional IP ranges for stricter allow-listing; otherwise its source addresses vary, so authentication by credentials is more reliable than by IP.

Codecs and Call Quality

ElevenLabs supports G.722 (16 kHz wideband) as well as G.711 μ-law and A-law (PCMU/PCMA, 8 kHz). WOCOM supports G.722 HD on its network, so where the caller's side allows it, ask for G.722 first. The agent then hears the caller more clearly, which matters for names, street addresses and Jamaican accents. If you choose encryption, set Media Encryption to Required only once WOCOM confirms SRTP is enabled on your route. A mismatch there is the most common cause of calls that connect in silence.

Step 3: Transfers and the Keypad

An agent that cannot hand off a call becomes a dead end. ElevenLabs supports transferring a call to a SIP address with SIP REFER, so the agent can pass a caller to sip:2001@yourcompany on your Cloud PBX or to a staff mobile through WOCOM. Ask WOCOM to allow REFER on your route and give it the list of transfer targets. Agents can also hear keypad presses and send tones, which helps with menus such as “press 1 to confirm”.

What It Costs (November 2026)

At the time of writing, ElevenLabs priced agent calls from about US$0.08 per minute plus the language model's usage, with a higher rate for calls above your plan's concurrency limit. WOCOM call charges apply as normal. ElevenLabs lets you choose the model behind the voice: OpenAI GPT models, Anthropic Claude, Google Gemini, or your own model endpoint. Check current pricing before you commit.

Testing Checklist

• Call the number from a Jamaican mobile and from a landline. Check the greeting, the voice and the response time.
• Say a Jamaican name and a street address and see whether the agent repeats them correctly.
• Ask for a person and confirm the transfer reaches the right phone.
• Hang up partway through and confirm the call ends cleanly on both sides.

Our go-live checklist covers this in more depth.

ElevenLabs or WOCOM AI?

ElevenLabs is a strong choice when voice quality is the priority and you have someone to build and maintain the agent. If you would rather have a receptionist that is ready on day one, knows your business hours, takes messages and transfers calls with no build work, WOCOM AI is included with Cloud PBX. You can also run both: WOCOM AI on the main line and an ElevenLabs agent on a campaign number. See the full guide to AI receptionist platforms, or talk to WOCOM to route your number.