Traditional PRI service for operations that still need it. PSTN sunset on your timeline, not the carrier's. Migration support when you're ready.
PRI · PSTN sunset on your timeline · Migration support when ready

PRI on your timeline.
Not the carrier’s.

The PSTN sunset is coming for PRI, but on your timeline, not the carrier’s. Some operations still need PRI because the PBX they run on it is still doing exactly what the business needs. Some need it because the equipment hasn’t been amortized yet. Some need it because the migration isn’t this fiscal year’s project. The market keeps trying to force-migrate these customers off; we don’t.

What It Is

Traditional PRI
with a path forward when you’re ready.

PRI service for operations that still need traditional T1-based PRI, either because the equipment supports it well, the migration isn’t timely, or the operational reliability is what the business depends on. We operate it like the carrier-grade voice service it is, and prepare the migration path when you’re ready to take it.

Established PBX operations

Existing on-prem PBX delivering reliable service. The hardware is amortized. The user experience is dialed in. There’s no business reason to migrate this fiscal year.

Regulated & healthcare voice

Healthcare clinical voice, regulated environments where the deterministic timing characteristics of PRI matter to the application. SLA-backed delivery.

Migration planning

Operations preparing to migrate to SIP but not this quarter. Co-existence path, parallel running, phased cutover engineered to your timeline.

Common Configurations

Three PRI configurations,
depending on what you’re running.

01 / Single PRI

Standalone 23-channel service

Single PRI delivering 23 voice channels plus a signaling channel. SLA-backed. Carrier-grade voice core behind it. Operational continuity for established PBX environments.

For single-site operations with established PBX.
02 / Multi-PRI Trunk Group

High-capacity trunk groups

Multiple PRIs aggregated into a trunk group for call centers and high-volume operations. Failover between PRIs. Concurrent capacity sized to peak load.

For call centers and high-volume voice operations.
03 / Hybrid PRI + SIP

Co-existence during migration

PRI running alongside SIP trunks during a phased migration. Both paths active. Cutover happens when the operational team is ready.

For operations mid-migration with no rush to retire PRI.
Why CyberNet

A carrier that takes PRI
as seriously as SIP.

No forced migration

We won’t pressure you off PRI before it’s the right business decision. Some operations are best served by PRI for years to come; we operate it accordingly.

Migration path documented

When you’re ready to migrate, the path to SIP is engineered, co-existence, cutover, training. Same engineering team across both services.

Carrier-grade reliability

99.999% voice-core uptime. PRI delivered with the same SLA posture as our SIP service. Operational support 24/7.

Common questions

Common questions

Can I keep PRI instead of migrating?

Yes. There is no forced migration. The PSTN sunset happens on your timeline, not the carrier’s.

Do you support migration later?

Yes. The migration path is documented, and support is there when you are ready.

Who still runs PRI?

Established PBX operations, and regulated and healthcare voice environments.

How is CyberNet different from other carriers?

CyberNet is an engineering-led, licensed CLEC since 1995 that owns its network, 150,000+ on-net buildings and 700+ cell towers. You work directly with the engineers who design and run your service, with no level-1 layer between you and the person who can fix the problem.

What uptime does CyberNet commit to?

A 99.999% core-uptime SLA, contractually penalized when missed.

How quickly will I hear back?

Within one business day.

How do I check coverage at my address?

Submit your address through the technology configurator and we’ll check coverage at each site.

What is Mission Control?

Mission Control is the operations platform every CyberNet customer lives inside, five workspaces: Orders, Marketplace, Ops Center, Billing, and Helpdesk. See Mission Control.

PRI Engagement

Need PRI? On your timeline.
Migration when you’re ready.

Tell us your PBX environment, call volume, and migration plans (or lack thereof), and we’ll come back with PRI service sized to your operation. Response within one business day.