Specification sheet · Voice & Wholesale Carrier Services
International A–Z Voice Routing
Quality-constrained least-cost routing across 600+ direct routes - with per-prefix control, named routing profiles and a route-testing lab, so your traffic lands where you decide it should.
Managed A–Z route portfolio for carriers and aggregators: LCR with ASR/ACD/PDD guardrails, per-prefix overrides, routing profiles, live testing and rate-deck automation.
- Direct routes
- 600+
- Median post-dial delay
- < 2 s
- Prefixes under management
- 1,900+
At a glance
- 600+ direct routes plus vetted Tier-1 and wholesale supply
- LCR bounded by ASR / ACD / PDD / MOS thresholds per prefix
- Named routing profiles per trunk, sub-account or CLI range
- Prefix-level pin, exclude, weight and CPS controls
- Automatic route failover on SIP 4xx/5xx and quality decay
- Route-testing lab with recorded audio and CLI verification
- Rate-deck automation with diff, notice and API download
- Dedicated routing desk and monthly portfolio reviews
Typical use cases
- 01International carriers
- 02Wholesale aggregators
- 03Class-4 switch operators
- 04Contact-centre carriers
- 05OTT and app operators
Technical & commercial specifications
| Portfolio | 600+ direct routes; Tier-1 and vetted wholesale supply; 230+ destinations |
|---|---|
| Routing engine | Quality-constrained LCR; up to 8-route hunt; SIP cause-code retry |
| Quality inputs | ASR, ACD, PDD, MOS, CLI delivery, sampled every 5 minutes per route |
| Granularity | 1,900+ prefixes; profile, trunk, sub-account and CLI-range scope |
| Controls | Pin, exclude, weight, CPS, concurrent calls, max PDD, time-of-day rules |
| Testing | Test-call generator, audio capture, CLI verification in 60+ countries |
| Rate decks | Effective-dated A–Z decks; per-prefix diff; 7-day increase notice; API |
| Integration | REST API, SIP 3xx redirect, ENUM-style responses, SFTP export |
| Reporting | Route-selection logs, supplier scorecards, margin per destination |
| Support | Dedicated routing desk; 24×7 NOC; monthly portfolio review |
Talk to Dollu about A–Z Routing
Send us your destinations, volumes, sites or use case and we will return a proposal, pricing and a technical plan within one business day. Test credentials and the full service description and SLA document are available on request.
- Sales
- [email protected]
- Phone
- +91 777-500-2222
- Web
- dollu.com
- NOC
- [email protected] · 24×7
Dollu Ltd · 2403A, Iconic Corenthum, Sector 62, Noida 201301, India. This sheet summarises the standard service; specifications may vary by country and are confirmed in the service order.
Online version: https://dollu.com/services/voice/international-a-z-routing
Contact: https://dollu.com/contact?service=international-a-z-routing