SIP Trunk AI Voice Agents — Bring Your Own Carrier, Keep Your Infrastructure
Connect your SIP trunk to AI voice agents with PulsyAI. Static IP, Registration, or Registrar mode. Keep your numbers, keep your carrier, keep your rates — run AI voice over your SIP trunk and deploy an AI receptionist over SIP without replacing anything.
BYOC · 3 SIP modes · Number import · IVR & DTMF · White-label included
How SIP Trunk Works with PulsyAI
From your carrier to AI resolution — one clean call path over the telephony you already run.
Your Carrier / PBX
Your existing telephony provider, numbers, contracts, and rates.
SIP Trunk Connection
Static IP / Registration / Registrar — whichever mode your gateway requires.
PulsyAI AI Engine
LLM + TTS + STT + IVR — the full voice AI stack, in real time.
AI Voice Agent Handles Call
Receptionist / Booking / Lead Qual / Outbound — answered instantly, 24/7.
Transfer to Human
Dial / SIP REFER — live transfer into your existing agent queues.
Complete Call
Booking confirmed, lead qualified, SMS & email follow-up sent.
Enterprise-Grade SIP Trunk Configuration
Not a workaround. Real SIP trunking for AI calling — enterprise-grade telephony integration with the carrier infrastructure you already pay for.
BYOC — Bring Your Own Carrier
PulsyAI is the bring-your-own-carrier AI platform: keep your existing carrier contracts, billing, and SLAs while BYOC voice AI connects to your provider — no forced migration, no new telephony vendor, no middleman markup. Your rates, your infrastructure, your control.
Three SIP Connection Modes
Static IP: Add your SIP gateway by domain or IP address for fixed setups. Registration: Dynamic authentication with name, gateway, username, and password. Registrar/SIP Client: Connect as a SIP client to your hosted PBX or cloud provider. Each mode supports both inbound destination forwarding and outbound gateway configuration.
Import Your Existing Numbers
Import phone numbers to the AI platform from Twilio, Telnyx, or your own SIP carrier and assign them directly to AI assistants. Your clients keep the numbers they already publish and advertise. Full number continuity.
Inbound & Outbound Support
SIP trunk supports both directions natively. Route inbound calls to AI agents and place outbound AI calls over your SIP trunk through your existing carrier. Not inbound-only — full bidirectional SIP.
Enterprise-Grade Transfers
Transfer live calls the way your PBX expects — full interoperability with existing call routing, IVR trees, and agent queues. Choose your transfer strategy per trunk: Dial is the default for new SIP trunks, Refer uses SIP REFER for direct media renegotiation. Provider routing changes take a few minutes to apply. Not just call completion — real PBX AI integration with SIP REFER AI transfer support.
Multi-Trunk Management
PulsyAI is a multi-trunk AI voice platform — manage multiple SIP trunks from one configuration panel. Different carriers for different clients, regions, or use cases, all from a single dashboard. Ideal for resellers and multi-client deployments.
Provider Routing & Gateway
Configure your provider routing with inbound destination forwarding — route all inbound calls to PulsyAI's SIP destination automatically. Set up your outbound gateway with A record support for explicit gateway configuration. Full control over how calls enter and leave the platform.
SIP Trunk Management Panel
View and manage all your configured SIP trunks from a dedicated panel. See trunk name, gateway domain or IP, connection type (Static IP, Registrar), transfer strategy (Dial, Refer), and status — all in one place. Add, edit, or delete trunks without support tickets.
See it running on your own SIP trunk.
Contact Sales →How to Connect Your SIP Trunk to PulsyAI
Five steps from carrier credentials to live AI voice agents — self-serve, no support tickets, no professional services.
Configure Provider Routing
Forward all inbound calls to PulsyAI's SIP destination endpoint. Add the SIP gateway using the domain or IP address your provider requires.
Add Your SIP Trunk Credentials
Choose your trunk type — Static IP or Registrar. Enter your trunk name, gateway address, and authentication details if using Registrar mode.
Set Your Outbound Gateway
Add your outbound SIP gateway domain or IP with A record support. This controls how AI agents make outbound calls through your carrier.
Choose Transfer Strategy
Select Dial (default) or Refer per trunk. Dial initiates new calls for transfers. Refer uses SIP REFER for PBX-native transfer handling.
Test and Go Live
Provider routing changes take a few minutes to apply. Once active, your AI agents handle calls through your SIP trunk immediately.
Need a hand with your carrier config?
Talk to Our Team →Built-In IVR with DTMF Keypad Input
Your callers interact with AI agents using their keypad — no custom telephony logic required.
PulsyAI includes native IVR with DTMF tone recognition — IVR DTMF AI voice built directly into the platform. Callers press keys to navigate menus, route to departments, confirm appointments, enter account numbers, and interact with AI agents — all over your SIP trunk. No additional telephony layer, no third-party IVR vendor, no custom build.
Menu navigation: Press 1 for sales, 2 for support — standard IVR menus
Keypad input collection: Account numbers and confirmations entered by keypress
SIP-native: Works natively over your SIP trunk connection
Hybrid calls: Combine AI conversation with DTMF input in the same call
Zero extra vendors: No additional telephony layer or IVR vendor needed
Who Connects via SIP Trunk?
VOIP Providers
You already own the telephony stack. Connect PulsyAI via SIP, white-label the platform, and sell AI voice agents to your existing client base. No infrastructure changes needed.
MSPs & Telecom Resellers
Your clients already use your voice service. Add AI agents as an upsell — receptionist, booking, lead qualification — all running on your SIP trunk under your brand.
Enterprise IT
You run an on-premise or cloud PBX. Connect PulsyAI to handle overflow, after-hours, and automated call flows without replacing your existing telephony investment.
Contact Centers
Augment your contact center with AI agents that handle Tier 1 calls, qualify leads, and book appointments — connected directly to your existing SIP infrastructure.
SIP Trunk + White-Label + Multi-Tier — Only on PulsyAI
No other platform combines SIP trunk integration with full white-label and multi-tier reselling.
PulsyAI is the only SIP trunk white label platform where you can connect your own SIP trunk, white-label the entire platform under your brand, AND resell to partners who each get their own dedicated instance with their own SIP trunk, domain, and Stripe billing. It's the complete package for telecom channel programs.
Your SIP Trunk
Connect your carrier. Your rates, your numbers, your infrastructure.
Your White-Label
Your domain, logo, colors. Clients never see PulsyAI. $99/mo.
Your Partner Network
Each partner gets their own dedicated instance with their own SIP trunk. Enterprise plan with custom pricing.
Build your channel on the only SIP-ready white-label platform.
Contact Sales →No SIP Trunk? No Problem.
Managed vs SIP trunk telephony — you choose. Use PulsyAI's managed telephony with Twilio or Telnyx, buy numbers directly in the platform, and start calling in minutes. You can always migrate to your own SIP trunk later.
Important: Numbers purchased inside PulsyAI are inbound-only. Outbound calling requires imported Twilio, Telnyx, or SIP numbers.
Trusted by Teams Worldwide
Real results from real customers running PulsyAI in production.
“Our clients get modern telecom infrastructure combined with an intelligent AI receptionist.”FonePBX — fonepbx.com
SIP Trunk FAQ
Connect Your SIP Trunk. Launch AI Voice Today.
BYOC. White-label. Multi-tier. The only SIP-ready AI voice platform built for telecom.
PulsyAI is a trademark of PulsyAI. Twilio, Telnyx, and all other company and product names mentioned on this page are trademarks or registered trademarks of their respective owners. Their mention does not imply any affiliation with or endorsement by them.
