VoIP Services

Everything your business needs for enterprise-grade voice communication — from individual numbers to full switching infrastructure.

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DIDs — Direct Inward Dialing

Assign direct local phone numbers to individuals or departments within your business without requiring separate physical lines. Available across hundreds of US area codes.

  • Local numbers in all major US area codes
  • Instant online provisioning
  • Full number portability (LNP)
  • E911 support available
  • Bulk ordering for enterprises
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TFNs — Toll-Free Numbers

Give your customers a free way to reach you with toll-free 800, 833, 844, 855, 866, 877, and 888 numbers. Perfect for customer service lines and national businesses.

  • All toll-free prefixes available
  • Vanity number options
  • Call forwarding & routing
  • Real-time call reporting
  • Porting existing TFNs accepted
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Origination

Route inbound calls from the PSTN to your VoIP platform with high-quality audio and intelligent call routing. Our origination network covers all 48 contiguous states.

  • Low-latency inbound call delivery
  • HD Voice (G.722) support
  • Failover routing options
  • STIR/SHAKEN compliant
  • Real-time CDR access
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Termination

Send outbound calls from your VoIP system to any phone worldwide through our carrier-grade termination network. Competitive rates with transparent billing.

  • Competitive domestic & international rates
  • Multiple codec support (G.711, G.729)
  • Fraud protection & call limits
  • Per-second billing available
  • High-capacity concurrent call handling
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SIP Trunks

Replace legacy PRI and analog lines with flexible SIP trunking. Ideal for businesses with existing PBX systems looking to cut costs and add capacity on demand.

  • Compatible with all major IP PBX systems
  • Elastic channel capacity
  • Failover trunk support
  • Direct peering available
  • No long-term contracts required

VoIP Switch

For carriers, CLECs, and high-volume resellers — Telsis provides switching infrastructure and routing services to handle large-scale VoIP traffic with reliability and control.

  • Class 4 & Class 5 switching
  • Route management & LCR
  • Real-time traffic monitoring
  • Custom routing configurations
  • Wholesale pricing available

Built on Carrier-Grade Infrastructure

All Telsis services run on redundant, geographically distributed infrastructure — engineered for the highest call quality and availability.

STIR/SHAKEN

All outbound calls are signed and verified to combat robocalling and caller ID spoofing.

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Encrypted Signaling

TLS and SRTP encryption available on all SIP connections to protect your calls in transit.

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Real-Time Reporting

Access detailed call detail records (CDRs) and live traffic dashboards for your account.

Need a Custom VoIP Solution?

Our team will work with you to design and deploy the exact configuration your business requires.