A-Z voice termination
A-Z VoIP termination with quality you can verify
Wholesale coverage across 100+ countries for resellers, carriers and platforms. Premium and standard tiers per destination, clean prefix logic for mobile and fixed breakouts, and live ASR, ACD and PDD so you never route blind.
Your rate deck is available in the portal after sign-up.
Termination · A-Z · premium
+49 30 •••• ••••
50%
4.1min
2.2s
Sample values · live per destination in portal
What it is
VoIP termination hands your calls to the networks that serve each number
Termination is the last leg of an outbound call: delivering it from the internet to the fixed or mobile network that owns the dialled number. "A-Z" means coverage for every destination in the international numbering plan, from Afghanistan to Zimbabwe, priced and routed by prefix.
Behind every prefix is a choice of interconnects. Some go direct to the national operator; others pass through one or more transit carriers. Quality varies enormously between them — in answer rates, post-dial delay, audio and whether the caller ID survives. Buying termination well means knowing which path each prefix takes.
CLIRoutes organises A-Z into clear quality tiers per destination. Premium tiers use direct or one-hop interconnects with CLI delivery; standard tiers trade some quality for broader capacity. Every breakout is listed separately in your rate deck, so mobile networks, fixed lines and special services are never blended into one opaque line.
The result is termination you can resell with confidence, because you can see — and show your own customers — how each destination is performing.
100+ countries
Fixed and mobile coverage worldwide, with direct interconnects on high-volume destinations.
Tiers per destination
Premium and standard tiers, clearly labelled. You choose per prefix group.
Transparent breakouts
Mobile operators, fixed and special services listed separately with clean prefix logic.
Data you can resell
Live quality stats and CDRs via portal and API for your own customer reporting.
Who it’s for
For networks that need coverage behind their own brand
A-Z termination is the backbone product for anyone reselling or originating voice at scale.
- 01
Resellers
Build retail or wholesale offers on our coverage, with sub-accounts and your own pricing.
- 02
Carriers
Bilateral or one-way termination to fill gaps, add redundancy or improve quality on key routes.
- 03
UCaaS and CPaaS platforms
Reliable outbound for your tenants, with API access to CDRs and quality data.
- 04
Enterprises with volume
International calling for distributed teams on your own softswitch or PBX.
How it works
How a call finds its way to the right network
Least-cost routing alone produces cheap, poor calls. We route on quality first, then cost within a tier.
- Hop 1Your softswitchSends calls in E.164 format with tech prefix or tier selection if you use one.
- Hop 2CLIRoutes routingMatches the longest prefix, selects the tier and ranks paths by live quality.
- Hop 3InterconnectDirect operator link or vetted transit carrier for that breakout.
- Hop 4Terminating networkThe fixed or mobile operator that owns the number completes the call.
Quality-ranked LCR
Within each tier, paths are ordered by recent ASR, ACD and PDD — not just price.
Automatic failover
Failed attempts retry on the next path in the same tier within milliseconds, preserving the call.
Fraud protection
Destination-level velocity limits and IRSF controls protect you from traffic-pumping attacks on your account.
Features
What you get with VoIP Termination
Global A-Z coverage
Every destination in the numbering plan, with direct interconnects where volume justifies them.
Premium and standard tiers
Clearly labelled tiers per destination so you can match quality to each customer segment.
Clean prefix logic
Longest-prefix matching and separate mobile, fixed and special-service breakouts.
CDRs and quality via API
Pull CDRs and per-destination quality into your own billing and reporting systems.
Softswitch interop
Interop-tested with common open-source and commercial softswitches over UDP, TCP and TLS.
Fraud controls
Per-destination spend and velocity limits, high-risk destination blocks and alerts you configure.
Quality metrics
The numbers that matter here
For termination, compare quality per destination and tier over time. A single day can mislead; trends do not.
52%
ASR Answer-Seizure Ratio
Compare ASR across tiers for the same destination to decide where premium is worth it for your customers.
3.4min
ACD Average Call Duration
Short ACD on a destination with good ASR often signals audio or CLI problems on a path.
2.1s
PDD Post-Dial Delay
Low PDD indicates direct interconnects. Rising PDD often means calls are being retried across paths.
97%
NER Network Effectiveness Ratio
The carrier’s own score: the share of attempts the network handled without failure.
Gauge values are illustrative. Live per-destination ASR, ACD, PDD and NER are in your portal.
Setup
From sign-up to first call
Connect your switch once; every destination and tier is available on the same interconnect.
- 1
Open an account
Business verification, with your network details if you are a carrier or reseller.
- 2
Configure interconnect
Whitelist your signalling IPs or create credentials. TLS and SRTP available.
- 3
Select tiers
Choose a default tier and override per destination group as needed.
- 4
Fund your wallet
Top up with USDT, BTC or ETH. Your rate deck is available in the portal after sign-up.
- 5
Automate
Pull rate deck updates, CDRs and quality via API and load them into your own systems.
# Point your routing set at the CLIRoutes edge# setid destination flags priority attrs1 sip:sip.example-carrier.net:5060;transport=udp 0 101 sip:sip.example-carrier.net:5061;transport=tls 0 5 # Send E.164 without leading +# Example: 4930XXXXXXXXCompare
How this route compares
Most customers run two or three route types side by side. Use the one that matches each traffic profile — mixing them on one trunk is the most common cause of poor answer rates.
| Attribute | CLI | IVR | CC | A-Z | SIP trunk | DID |
|---|---|---|---|---|---|---|
| Primary job | Outbound with your caller ID intact | Automated, consented campaigns | Agent-handled dialer outbound | Broad wholesale coverage | PBX / UCaaS connectivity | Inbound and owned CLI |
| Caller ID | Guaranteed passthrough | Authorised CLI, delivered | Authorised CLI, delivered | Tier-dependent | Your DIDs or authorised | Number you own |
| Typical call length | Medium to long | Short (under 60s) | Medium | Any | Any | Inbound, any |
| CPS / concurrency | Moderate, steady | High, approved per campaign | High concurrency, bursty | Scales with volume | Channel limit you set | Per-number channels |
| Consent review | CLI authorisation | Required per campaign | AUP + DNC hygiene | AUP | AUP | Regulatory documents |
| Typical buyers | Sales teams, BPOs | Notification & survey platforms | Call centers, dialer operators | Resellers, carriers | Businesses, UCaaS | Support desks, local presence |
- CLI
- Primary job
- Outbound with your caller ID intact
- Caller ID
- Guaranteed passthrough
- Typical call length
- Medium to long
- CPS / concurrency
- Moderate, steady
- Consent review
- CLI authorisation
- Typical buyers
- Sales teams, BPOs
- IVR
- Primary job
- Automated, consented campaigns
- Caller ID
- Authorised CLI, delivered
- Typical call length
- Short (under 60s)
- CPS / concurrency
- High, approved per campaign
- Consent review
- Required per campaign
- Typical buyers
- Notification & survey platforms
- CC
- Primary job
- Agent-handled dialer outbound
- Caller ID
- Authorised CLI, delivered
- Typical call length
- Medium
- CPS / concurrency
- High concurrency, bursty
- Consent review
- AUP + DNC hygiene
- Typical buyers
- Call centers, dialer operators
- A-Z
- Primary job
- Broad wholesale coverage
- Caller ID
- Tier-dependent
- Typical call length
- Any
- CPS / concurrency
- Scales with volume
- Consent review
- AUP
- Typical buyers
- Resellers, carriers
- SIP trunk
- Primary job
- PBX / UCaaS connectivity
- Caller ID
- Your DIDs or authorised
- Typical call length
- Any
- CPS / concurrency
- Channel limit you set
- Consent review
- AUP
- Typical buyers
- Businesses, UCaaS
- DID
- Primary job
- Inbound and owned CLI
- Caller ID
- Number you own
- Typical call length
- Inbound, any
- CPS / concurrency
- Per-number channels
- Consent review
- Regulatory documents
- Typical buyers
- Support desks, local presence
Compliance notes
Rules that keep this route stable
Wholesale termination carries obligations to downstream networks. These rules keep interconnects open for everyone.
Know your customers
Resellers are responsible for knowing their own customers and keeping basic records available on request.
Acceptable use
No traffic pumping, artificially inflated traffic or unlawful calling. Our AUP applies to all downstream traffic.
Accurate caller ID
Calls must carry a valid, authorised caller ID in the correct format for the destination.
Lawful intercept and records
We retain CDRs as required by law and respond to valid legal requests.
Coverage
VoIP Termination by country
Explore country pages for destination details, breakouts and local caller ID rules.
- United States
- United Kingdom
- Canada
- Australia
- Germany
- France
- Spain
- Italy
- Netherlands
- Belgium
- Switzerland
- Austria
- Sweden
- Japan
- Brazil
- Mexico
Termination is a commodity until it fails
Most destinations can be reached in many ways, and on a rate sheet they all look similar. The differences appear in production: calls that ring forever, audio that drops, numbers that never answer because the caller ID was replaced somewhere in transit.
CLIRoutes makes those differences visible. Clear tiers, separate breakouts and live quality data mean you can choose deliberately, defend your choices to your customers and spot problems before they become churn. Your rate deck is available in the portal after sign-up.
FAQ
VoIP Termination FAQ
Can’t find what you need? Our routing team answers within the hour, around the clock.
What does A-Z termination mean?
Coverage for every destination in the international numbering plan, routed and priced by prefix. You can send any international number to a single interconnect and we route it to the right network.
What is the difference between premium and standard tiers?
Premium tiers use direct or one-hop interconnects with CLI delivery and the highest quality. Standard tiers offer broader capacity with more transit. Both are labelled per destination in your rate deck.
Can I resell your termination?
Yes. Resellers can create sub-accounts, apply their own pricing and export CDRs and quality via API. You remain responsible for knowing your own customers.
Which codecs are supported?
G.711 (A-law and µ-law) and G.729 everywhere; other codecs on request for specific destinations. Transcoding is available where needed.
How do I receive rate deck updates?
Rate changes are published in the portal and via API with an effective date, giving you time to update your own systems before they apply.
How do you protect against fraud?
We apply destination-level velocity limits, block known high-risk number ranges and let you set spend caps and alerts. Unusual traffic patterns trigger NOC review.
Do you offer bilateral agreements?
For carriers with suitable volume and quality, yes. Contact our routing team to discuss terms.
Can I get CDRs in real time?
CDRs appear in the portal within seconds of call completion and can be pulled via API or exported as CSV.
Coverage you can see into
Open an account, connect your switch and compare tiers per destination. Your rate deck is available in the portal after sign-up.