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SIP Trunk Voice
High-quality SIP trunking for A2Z global voice termination. Direct SIP peering eliminates intermediary carriers, delivering better call quality, lower per-minute costs, and full CDR transparency for your billing team.
Request SIP Peering →SIP Trunk Features
- ✓SIP 2.0 (RFC 3261) & H.323 support
- ✓G.711, G.722, G.729 codec support
- ✓Direct peering — no intermediary transit carriers
- ✓CLI pass-through and DNIS routing
- ✓T.38 fax-over-IP support
- ✓Redundant SIP proxy clusters (active/active)
- ✓Real-time CDR delivery via API or SFTP
- ✓Call recording integration on request
Technical Specs
ProtocolSIP 2.0 / H.323
CodecsG.711, G.722, G.729
Max concurrent callsUnlimited (burst)
Uptime SLA99.9%
CDR granularityPer-second billing
ASR (avg success rate)> 72%
Better voice quality. Lower per-minute cost.
Get a rate deck and test CDRs within 24 hours of your enquiry.
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