Carrier-grade SIP trunking for voice AI agents
Connect LiveKit, ElevenLabs, Retell, or Vapi to real phone numbers, calling in 190+ countries, and unlimited concurrent calls with pay-as-you-go pricing.
- countries
- 190+
- channels
- ∞
- uptime
- 99.99%
Works with your voice agent platform
Point your platform at a Plivo SIP trunk. Inbound calls route from your Plivo numbers to your agent; outbound calls terminate through Plivo's global carrier network.
Custom real-time voice agents with full control over the audio pipeline. Your agents answer calls on Plivo numbers and place outbound calls through the same trunk.
Natural-sounding conversational agents with industry-leading voice synthesis. Import your Plivo number in ElevenLabs to receive calls, and dial out worldwide over a secure trunk.
Rapid AI assistant deployment with pre-built templates and workflows. Register your Plivo number in Vapi to take inbound calls, and whitelist Vapi's IPs so your assistants can dial out.
Production voice agents with built-in testing, monitoring, and analytics. Connect Retell over elastic SIP trunking for inbound and outbound calling on your Plivo numbers.
Two trunks cover every call
Create an outbound trunk so your agents can place calls, and an inbound trunk to route your Plivo numbers to your platform.
Outbound trunking: your agents call out
Your agents place calls to 190+ countries
Point your platform at your trunk's termination domain and dial mobile or fixed numbers worldwide.
Multiple authentication options
Authenticate your agent platform with IP access control lists or credentials-based digest authentication.
Unlimited concurrent calls
Scale agent call volume elastically. No channel licenses, no per-port fees, no extra cost.
Inbound trunking: callers reach your agents
Receive calls on numbers in 70+ countries
Purchase local, national, mobile, or toll-free numbers and attach them to your inbound trunk.
Route calls straight to your agent
Point an origination URI at your platform's SIP endpoint and calls reach your agent in seconds.
Automatic failover
Add a fallback URI per trunk. If your primary endpoint is unresponsive, Plivo reroutes calls automatically.
Everything agents need from the phone network
network
Global infrastructure
PoPs in seven locations across five continents (California, Virginia, Frankfurt, Mumbai, Singapore, Sydney, Sao Paulo) keep latency low wherever your callers are.
High availability and uptime
Redundant infrastructure across geographies and at least three local carrier connections per country back a 99.99% uptime promise.
Global coverage
Call 190+ countries and rent local, national, mobile, or toll-free numbers across the globe, with per-country rates listed for every destination.
Explore SIP coveragesecurity
Two authentication modes
Authenticate your platform with IP access control lists, or with username and password credentials using SIP digest authentication. Use either, or both.
Secure trunking
Encrypt signaling with Transport Layer Security (TLS 1.2 and 1.3) and media with Secure Real-Time Transport Protocol (SRTP). One toggle per trunk.
Fraud protection and alerts
Control which countries your agents can dial with geo permissions, block high-risk routes by default, and get automatic alerts on suspicious activity.
live calls
Low-latency call quality
Calls terminate through one-hop local carriers for low post-dial delay, with CLI and DTMF support and no out-of-region audio looping.
Human handoff with SIP REFER
Transfer a live call from your AI agent to a human mid-conversation. Plivo bridges the caller to the new leg, so the handoff is seamless with no re-dial.
STIR/SHAKEN attestation
Plivo signs your outbound calls and verifies inbound caller IDs in the US and Canada, helping your agents' calls get answered instead of flagged.
Simple pay-as-you-go pricing
Per-minute rates with nothing bolted on: no channel fees, no port fees, no monthly minimums, no long-term contracts. Volume discounts as you scale.
| Number type | Outbound | Inbound |
|---|---|---|
| Local | Starts at $0.0046/min | Starts at $0.0028/min |
| Toll-free | $0.0010/min | $0.0120/min |
Enterprise-grade security
& compliance
- tls · aes-256
Encryption everywhere
TLS in transit. AES-256 at rest. No exceptions.
- us · eu · apac
Data residency
Choose US, EU, or APAC. Your data stays where you need it.
- logs · rbac · reports
Audit-ready
Full access logs, RBAC, and compliance reports on demand.
Ready to give your agents a phone number?
Sign up free and connect your platform in minutes, or talk to us about volume pricing.