A-Z Wholesale VoIP Termination & Direct SIP Peering
Carrier-Grade A-Z Wholesale VoIP Termination with CLI Preservation
High-capacity international A-Z wholesale VoIP termination designed for licensed network operators, wholesale aggregators, and enterprise contact centers. Operating via direct bilateral SIP interconnects, our termination service utilizes dynamic Least Cost Routing (LCR) optimized for Post Dial Delay (PDD), Answer Seizure Ratio (ASR), and Average Length of Call (ALOC).
Architectural Capabilities & Features
Bilateral SIP Interconnects
Establish SIP trunks authenticated via static public IP addresses. Supports SIP Digest authentication and domain-based SRV routing for flexible carrier interconnect architecture.
Strict CLI Preservation
Authentic Calling Line Identification (CLI) transmission delivered through licensed in-country operators, mitigating the risks of caller ID masking and regulatory blocking.
Automated LCR Engine
Multi-carrier routing logic that continuously evaluates route economics alongside strictly enforced ASR and PDD technical thresholds.
STIR/SHAKEN Compliance
Cryptographic identity signing and PASSporT attestation across applicable North American (NANP) and international regulatory corridors.
Technical Specifications
| Signaling Protocol | SIP v2.0 (IETF RFC 3261), UDP, TCP, TLS 1.3 |
| Audio Codecs | G.711 A-law, G.711 µ-law, G.729a/b, G.722, Opus |
| Billing Increments | 1/1, 6/6, 30/6, 60/60 pulse billing configurations |
| Identity Attestation | STIR/SHAKEN Level A cryptographic attestation (PASSporT) |
| Interconnect Facilities | London, Frankfurt, Singapore, New York, Hong Kong |
| CDR Reconciliation | Real-time RADIUS delivery and daily CSV transaction records |