Voice termination
Wholesale voice termination for carriers, VoIP providers and contact centres.
A–Z SIP termination to 200+ countries over UDP, TCP or TLS, with CLI pass-through and per-destination quality reporting.
From €0.0033/min (Mexico). Routes are priced by destination and call origin. Rate decks are issued after KYC and a short interop test.
Built for
Who uses our voice routes
Business customers that send voice traffic from their own switching platform.
Carriers and VoIP providers
Add A–Z termination behind your own switch without building direct interconnects in every country.
Learn moreContact centres
Verified contact centres with a declared traffic profile, CLI policy and agreed limits per destination.
Learn moreUCaaS and CPaaS platforms
Outbound PSTN termination for platforms that serve business customers, billed per minute from a prepaid wallet.
Learn moreArchitecture
Voice architecture: SIP in, carrier routes out
How a call travels from your switch through OmaxTelecom to the destination network, and where CDRs come from.
Technical details
Interconnect
Standard SIP, no proprietary setup. Interconnect details are on the network page.
- Signalling
- SIP over UDP, TCP or TLS
- Codecs
- G.711 A-law / µ-law, G.729, Opus
- Fax
- T.38
- Authentication
- IP authentication or SIP credentials
- CLI
- CLI passed through as presented, subject to destination rules and our CLI policy
- Billing
- Per minute, prepaid wallet. Rate deck per destination and origin
- Countries
- 200+
- SIP transports
- 3
- Quality metrics per destination
- 4
Service levels: See SLA
Quality
Route quality per destination
ASR, ACD, PDD and MOS: the four metrics carriers use to compare routes.
ASR
Answer-seizure ratio
Share of call attempts that are answered. The first indicator of route health per destination.
ACD
Average call duration
Average length of answered calls. Short ACD on a route usually points to quality or CLI problems.
PDD
Post-dial delay
Time from sending the INVITE to receiving ringback. High PDD affects agent productivity and abandonment.
MOS
Mean opinion score
Estimated audio quality of answered calls, derived from packet loss, jitter and latency.
Prices
Sample termination rates
A selection from the current rate deck. Your full deck covers every destination you send to.
| Destination | EUR / min |
|---|---|
 Mexico Fixed & Telcel | €0.0033 |
 Brazil All | €0.00571 |
 Canada All | €0.00571 |
 Malaysia All | €0.0081 |
 Spain All | €0.01333 |
 Austria All | €0.01428 |
 Hungary All | €0.01428 |
 Netherlands All | €0.01428 |
 Ireland All | €0.01618 |
 Slovakia All | €0.01618 |
 Switzerland Fixed | €0.03332 |
| Switzerland Mobile | €0.06854 |
 Laos All | €0.07425 |
Indicative. Final rates depend on origin, volume and route type.
Onboarding
From first contact to live traffic
Every voice account goes through the same five steps.
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Step 01: KYC and agreement
Company verification and signed service agreement, including our Acceptable Use Policy.
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Step 02: Traffic profile
Destinations, expected volumes, call origin, CLI types and traffic type (wholesale, contact centre, retail).
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Step 03: Interop test
Test calls over a test trunk to confirm signalling, codecs and CLI handling.
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Step 04: Rate deck
Rate deck for your destinations and origin, with fixed and mobile pricing where it applies.
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Step 05: Go live
Production trunk with an agreed credit limit and per-destination limits.
FAQ
Technical questions
Voice termination is the delivery of a call from your network to the destination operator. OmaxTelecom provides wholesale SIP termination to 200+ countries through interconnects with partner carriers.
Many destinations, especially in the EU, charge different termination rates depending on where the call originates (for example EEA versus non-EEA origin). The rate deck you receive is based on the origin you declare in your traffic profile.
SIP over UDP, TCP and TLS. Codecs: G.711 (A-law and µ-law), G.729 and Opus. T.38 is available for fax.
CLI is passed through as presented, subject to destination regulations and our CLI policy. Spoofed, invalid or unallocated CLIs are not permitted. See our Acceptable Use Policy for details.
ASR, ACD, PDD and MOS are reported per destination, so you can compare our routes against your own CDRs.
After KYC and a short interop test. Timing depends on your traffic profile.
Related products
Ready to route traffic with OmaxTelecom?
Tell us about your traffic and we'll come back within one business day with pricing and onboarding steps.
- Business accounts only
- KYC required before production
- Prepaid wallet