AI voice agents
Your agent or SBC terminates to the PSTN over SIP on our direct interconnect, with Opus/u-law/a-law over IP or VPN (e.g. ElevenLabs, Vapi, LiveKit, Retell).
Developer hub
DIDs, SIP and SMS for your software
One interconnect between your code and international networks — SIP/TLS over IP or VPN, E.164 and programmable SMS (OTP / campaigns / 2-way) where the market enables it.
exten => _X.,1,NoOp(Outbound via cAIl)
same => n,Set(CALLERID(num)=${DID_E164})
same => n,Dial(PJSIP/${EXTEN}@assigned-trunk,60)
same => n,Hangup()
; Inbound: your agent answers
[from-cail]
exten => _X.,1,Stasis(voice-agent)
same => n,VoiceMail(${EXTEN})Connection paths
Three ways to plug in
SIP over IP or VPN
Asterisk, FreeSWITCH, 3CX or RFC 3261: SIP/TLS peering :5061 over IP or VPN, SRTP and per-market CLI.
SMS in your backend
SMS on your DIDs via SMPP or REST — OTP, bulk campaigns, notifications and 2-way where enabled.
Setup guides
Setup guides for your interconnect
Asterisk
PJSIP wizard template, TLS peer configuration and codec alignment.
FreeSWITCH
Gateway profile with SRTP settings and CLI mapping.
3CX
SIP trunk provider template with DOD rules per market.
Custom SIP
Any RFC 3261 stack: use the assigned SIP host and credentials from your interconnect brief.
Need an integration detail not covered here? Our NOC engineers answer technical questions in English or Spanish.
Numbering
Every number speaks E.164
International E.164 over our interconnect: owned and operated in CL/MX, managed by the NOC elsewhere. Mobile/convergent for AI, fixed for concurrency, toll-free for inbound. We handle market paperwork with you.
| +52 55 XXXX XXXX | Mexico City · local |
| +55 11 XXXX XXXX | São Paulo · local |
| +1 305 XXX XXXX | Miami · local |
| +57 601 XXX XXXX | Bogotá · local |
Developer hub
Test your agent against our trunk this week
Markets + voice/SMS volume → inventory, pricing and a test trunk within one business day.