Wholesale VoIP Origination

Wholesale VoIP Origination for US Carriers.

Provision US DIDs, toll-free numbers, and international numbers on Teloz wholesale origination capacity — SIP-delivered with E911, CNAM, LNP, and STIR/SHAKEN validation built in.

Start a Free TrialPricing
DIDs in 50 states
Toll-free 8XX
E911-ready
STIR/SHAKEN validated
Quality Buyers Evaluate
DID provisioning speed (minutes, not days)
Geographic coverage across every NPA-NXX you need
E911 reliability and PSAP routing
CNAM accuracy on inbound calls
SIP delivery quality (MOS, ASR, PDD)
Portability options (LNP) in and out
Why It Matters

Origination is not a commodity.

Inbound traffic is half the conversation. Every support line, contact center campaign, conference dial-in, and SaaS verification flow needs a phone number that rings reliably on your network.

A weak origination partner means missed calls, regulatory exposure, and broken customer experience. Teloz delivers carrier-grade DIDs on a SIP-native platform built for scale.

Number Coverage
3
NUMBERTYPES

One platform. One API. Full North American coverage plus 40+ international markets.

01
US Local DIDs
All 50 states, every major metro
Instant provisioning via portal or REST API · Rate center, LATA & OCN metadata · Bulk CSV ordering
02
Toll-Free Numbers
800, 833, 844, 855, 866, 877, 888
Vanity search & reservation · RespOrg transfers supported · Dedicated high-volume inbound capacity
03
International DIDs
40+ countries, one platform
Local, national & mobile types · City-specific numbers · Local KYC compliance built in
SIP Infrastructure

SIP Delivery, Capacity, and Concurrent Calls

Inbound calls land on your network via SIP — geo-redundant, auto-failover, and quality you can measure.

50K+
Concurrent channels
4.0
MOS on US routes
>60%
ASR on direct interconnects
<2 s
Post-dial delay
SIP Delivery
IP-based or credential-based authentication
Multiple geo-redundant termination IPs per account
Automatic failover and load balancing
IPv4 and IPv6 supported
Asterisk · FreeSWITCH · BroadWorks · Cisco CUCM
Capacity Tiers
Start at 10 concurrent channels
Scale to 50,000+ for enterprise traffic
Burst handling for campaigns and seasonal peaks
No re-provisioning required when you upgrade
Real-time channel utilization dashboards
Quality Metrics
MOS above 4.0 on US routes
Post-Dial Delay under 2 seconds
ASR consistently above 60% on direct interconnects
Real-time ASR, ACD, MOS, PDD dashboards
Fast issue triage by destination
Required Capabilities

E911, CNAM, and Number Portability

Inbound numbers need more than ringing. They need to work with emergency services, present caller ID correctly, and move between carriers when business demands it.

E911

Emergency Services

  • Address registration at DID assignment
  • Real-time E911 address updates via API
  • PSAP routing across every US jurisdiction
  • Bulk updates for multi-location deployments
FCC E911 requirements ↗
CNAM

Caller Name Display

  • Outbound CNAM provisioning for branded caller ID
  • Inbound CNAM lookups with low-latency dips
  • Custom CNAM strings supported
  • Integrated with iconectiv number registry
LNP

Number Portability

  • Inbound porting from any major US carrier
  • 4–7 business days for simple ports
  • Project-managed bulk migrations for large fleets
  • Outbound porting honored per FCC rules
STIR/SHAKEN & FCC Compliance

STIR/SHAKEN Validation and FCC Compliance

Origination is where call authentication starts. Every inbound call we deliver arrives with its STIR/SHAKEN signature already validated.

On every call we deliver to you
Signature verified before SIP handoff
Attestation level (A, B, or C) surfaced in the CDR
Verified caller-ID data passed through SIP headers
Optional auto-blocking on low-attestation traffic
FCC compliance baked in
US numbers issued under our Operating Company Number (OCN)
Robocall Mitigation Database registration maintained
Letters of Authorization handled per FCC porting rules
KYC verification required for every number assignment

Your downstream apps — call center routing, fraud filters, IVR scoring — get caller-ID data they can trust. See our wholesale VoIP compliance page for the full regulatory framework.

Required Capabilities

Built for Contact Centers, ITSPs, and Enterprise PBX

Different buyers use origination differently. Teloz supports the full range without forcing one workflow.

Contact Centers
High-volume inbound at carrier scale
High-volume inbound for support and salesDID pools for IVR and skill-based routingToll-free for customer-facing brand presenceE911 for office-based agents
ITSPs and Hosted PBX
Bulk provisioning, white-label ready
Bulk DID provisioning via API for auto-assignmentWhite-label rate plans for resellersSub-account management portalMulti-tenant E911 address management
Enterprise PBX
Mission-critical SIP trunking
SIP trunking integration with on-prem PBXGeo-redundant SIP IPs for failoverDirect interconnect for low-latency delivery24/7 NOC for mission-critical traffic
Origination FAQ

The short answers.

Common questions from carriers, ITSPs, and contact centers evaluating wholesale VoIP origination.

Origination is the wholesale service that delivers inbound calls to your network — providing DIDs, toll-free numbers, and SIP delivery so customer calls ring through to your platform.

Carrier-grade origination, live in minutes.

From 10 local DIDs to 10,000+ numbers for a national contact center — order through the portal or talk to a sales engineer about high-volume requirements.

Get StartedPricing
Instant DID provisioningE911 & CNAM includedLNP in and outSTIR/SHAKEN validated