Voice
SIP Trunking
Enterprise-grade SIP trunks with crystal-clear voice quality and 99.99% uptime. Metered or unlimited channels, with burst capacity when you need it.
Why Temptera SIP
Voice infrastructure that scales with you
Connect your PBX or contact-centre platform to the PSTN over a resilient SIP trunk. Add channels on demand, absorb traffic spikes with burst capacity, and route origination and termination through premium or standard paths to match cost to quality.
- 99.99% uptime on carrier-grade infrastructure.
- Instant scaling — add channels or capacity without contract renegotiation.
- Premium & standard routes so you choose the quality/cost balance per lane.
- Works with your PBX — FreeSWITCH, Asterisk, 3CX, FreePBX, and more.

Channel Models
Pay the way that fits your traffic
Three capacity models — pick per trunk, mix across trunks, change as you grow.
Metered Channels
Pay per concurrent call. Best for variable or seasonal traffic where you don't want to reserve idle capacity.
Unlimited Channels
A flat monthly rate for predictable, high-volume voice — no per-call metering to track.
Burst Capacity
On-demand overflow that absorbs spikes above your committed channels, so campaigns never hit a busy signal.

Origination & Termination
Inbound and outbound, your way
Bring calls in on local, national, or toll-free numbers, and send them out over premium or standard termination routes. Volume traffic qualifies for custom bulk rates.
- Origination on DID numbers across 100+ countries.
- Termination on premium routes from $0.005/min or standard from $0.003/min.
- Bulk volume rates negotiated to your traffic profile.
Voice Platform
More than a trunk — a full voice platform
Run your voice operation from one dashboard: originate calls from your own systems, guard against fraud, and see every call as it happens.
Click-to-Call
Launch outbound calls straight from your CRM or app. An API request rings your agent's SIP device first, then bridges to the customer — no manual dialling.
Anti-fraud rules
Velocity limits block repeated calls to the same number within a set window, alongside spend caps and destination allow/deny lists — stopping traffic pumping and runaway costs.
Live call monitoring
Watch active calls in real time — who's connected, to where, and for how long — and drop or intervene on a session directly from the dashboard.
Call recording
Record inbound and outbound calls, store them securely, and retrieve or download the recording attached to each call record.
Interactive call reports
Filter, group, and drill into call records by date, destination, route, or account — then export the view for billing and analysis.
REST API
Provision numbers, launch calls, and pull call records and balances programmatically — wire the platform straight into your own systems and automations.
IVR builder
Build multi-level phone menus visually — greetings, key-press routing, queues, and time-of-day rules — without touching dialplan code.
Ring groups
Ring a whole team at once — or in a set order — until someone answers, with no-answer fallback to voicemail, another group, or an external number.
DID & number management
Buy, assign, and route local, national, and toll-free numbers to trunks or IVRs from one place — see coverage before you provision.
Bring your voice traffic to Temptera
Share your concurrent-call needs and route mix and we'll size a trunk and quote it — no minimums, no lock-in.