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Solution · SIP trunk & TDM routing

Terminate VoIP calls over SIP trunks, IP numbers and E1/T1 lines.

Terminate voice traffic directly through IP phone numbers, TDM channels or carrier SIP trunks, with no SIM cards to manage — with or without CMER bandwidth compression.

What is SIM-less termination?

Traditional GSM termination depends on physical SIM banks that need constant card handling and upkeep. As voice markets mature, operators increasingly terminate traffic through IP phone numbers, TDM circuits, E1/T1 trunks and wholesale SIP trunks.

Cloudfonica’s SIP Trunk (Premium) service brings our full self-managed routing, CDR accounting, SIP firewall and encrypted tunnel stack to trunk-based termination:

  • Flexible compression: Run with CMER bandwidth optimisation over constrained links, or pass uncompressed SIP/RTP directly to real-IP switches and trunks.
  • Combine with Call Filter: Layer caller-ID rotation, number length validation and blacklist/whitelist rules in front of your SIP trunks.
  • Hourly elasticity: Scale concurrent capacity from 16 to 256 ports per server during peak windows.

Configuration manual

SIP trunk service panel documentation

Download the step-by-step PDF manual for configuring originating carriers, SIP trunk endpoints and dial plans in the Cloudfonica service panel.

PDF manual · 2024.08 www.cloudfonica.com

SIM-less termination & SIP trunk configuration

Service panel configuration guide for IP phone numbers, TDM channels, E1/T1, and SIP trunks.

SIM-less cloud SIP & E1/T1 trunking pipeline Zero physical SIM banks · Metered hourly Inbound carrier ingress Originating switches & carriers SIP UDP 5060 Raw RTP or CMER 8.1 kbps IP-whitelisted firewall SIP 5060 RTP / CMER Self-managed cloud core · panel v6.6 Cloudfonica cloud SIP server Dedicated IPv4 · Dial-plan failover Optional Call filter · Live CDRs 16–256+ ports · Elastic scaling SX · TX:5967 · UX or direct SIP IP phone numbers (DID) Direct IP voice endpoints Carrier SIP trunks Wholesale A–Z & real-IP TDM / E1 / T1 circuits 32-port E1 interconnect

Route your SIP trunks through Cloudfonica.

Full CDR visibility, dial-plan failover and hourly port scaling.