Solutions / Wholesale Carrier
Voice Wholesale
International voice termination on direct interconnects to 500+ destinations. CLI on the routes that need it, non-CLI where margin is the priority.
What you get
Direct routes, monitored per destination.
Wholesale voice is a high-volume, low-margin business. The rate sheet is the easy part. Holding the rate sheet up under peak traffic, fraud pressure and route churn is the part most carriers underdeliver on.
Direct, not transit
500+ direct interconnects to tier-1 and tier-2 operators. Fewer intermediary hops, lower latency, higher ASR.
CLI and non-CLI
True CLID on premium routes, no A-party refiling. Non-CLI tiers for cost-led traffic, labelled honestly as such.
TDM and SIP-I
TDM where the country still needs it (much of Africa, parts of LATAM). IP-native everywhere else. ISUP release codes preserved end-to-end.
Metrics
The numbers we track, and that you should too.
Most carriers quote ASR. ASR is a starting point, not a finish line. We publish the metrics below per destination because that is where the real conversation lives.
40%+
ASR target (premium)
Below 30% on a stable corridor flags an alert within 15 minutes.
3 min+
ACD healthy band
Below three minutes on a stable route usually means audio quality, not the dial plan.
<2s
PDD threshold
Above four seconds and your subscribers hang up before connect.
NER
SLA basis
Network Effectiveness Ratio, strips out user behaviour to show pure network performance.
Route types
CLI, non-CLI, and what is honestly in each.
A rate sheet that lists only “premium” and “standard” hides more than it reveals. We label routes by what they actually pass.
01
Premium CLI, true CLID, no refiling
Original A-number preserved end-to-end. Use this for call centres, banking, enterprise PBX traffic where answer rates decide whether the campaign works.
02
Standard CLI, localised presentation
CLID adapted to local numbering plan where the destination requires it. Mid-tier ASR, mid-tier cost. Honest about what it is.
03
Non-CLI, margin-led
Lowest cost per minute. Answer rate is lower; some MNOs strip CLID anyway. Right for traffic where cost per minute beats answer rate on the maths.
04
Managed premium, SLA-backed
For corridors where the buyer needs an ASR floor in writing. Comes with named NOC escalation and a defined trouble-ticket SLA.
Field note
“The LCR way will lead to call failures and trouble tickets. Customers will complain. The cost of chasing trouble tickets can be substantial as well as the re-routing necessary until the faulty route is fixed.”
– a working operator’s perspective on why route quality matters more than the per-minute rate. We agree, which is why our routing engine weights ASR and PDD alongside cost.
Wholesale voice termination is the carrying of international calls between operators: your traffic, our interconnects, their subscribers. The craft is not in the carrying — it is in knowing, per destination, which route answers, which route sounds like a conversation, and which route is quietly refiling your A-numbers. That is what we supervise.
The four metrics that matter.
Every route we sell is scored on the same four numbers our voice transit observatory watches in production. If you buy termination, you should be reading these too:
| Metric | What it tells you | Healthy range |
|---|---|---|
| ASR (Answer Seizure Ratio) | How many call attempts connect | 40%+ international; below 25% investigate |
| ACD (Average Call Duration) | How long conversations last | 2-6 min consumer; under 90s on consumer = bypass suspicion |
| PDD (Post-Dial Delay) | Wait before ringback | Under 5s; spikes on “direct” routes = hidden hops |
| NER (Network Efficiency Ratio) | Did the call reach the destination, answered or not | Close to ASR; wide gap = network loss |
Full definitions with practitioner notes: the 22-term wholesale glossary.
What honest termination looks like.
Every carrier says “quality routes”. Fewer will tell you what is actually on the sheet. Ours separates what the industry often blends:
- CLI routes: true calling number preserved end to end, verified per hop. Guaranteed CLI available on premium corridors for flash-call verification and enterprise callback.
- Non-CLI routes: presentation suppressed. Labelled honestly, priced accordingly. We never sell non-CLI labelled as CLI.
- TDM and SIP-I: both supported, per the destination’s infrastructure. ISUP release codes preserved.
- Test calls before commit: send your traffic pattern, we run a live test per destination before you commit volume.
Frequently asked
Can I test before committing volume?
Yes. We run test traffic per destination with your traffic pattern before commercial launch. Direct interconnects get a named test plan.
What happens when a route degrades?
Drift alerts land with an engineer inside minutes. Traffic steers to healthy alternates while the root cause is chased. Read the routing quality observatory.
Do you offer guaranteed CLI?
Yes, on premium corridors, verified per hop and compensated when the guarantee fails. What guaranteed CLI means.
What about fraud on my routes?
Our fraud protection hub covers OTT bypass, CLI refiling and A2P grey routes. Start with a free traffic audit on your worst corridor.
Next
Want the route sheet, or a working test call?
Tell us your top destinations and current ASR pain. We will come back with a route map and a live test plan.