SIP trunk provider for enterprise voice

Contact us for pricing. We share pricing after a short discovery call.

On the call, we look at how many calls you carry at once, how many phone numbers and toll-free numbers you hold and where you place international calls. We quote from your own invoices and call records, and the quote lists minimums and renewal terms.

SIP trunking supplies the lines to a phone system you run. A hosted phone system supplies the phone system too.

Trunks make sense when you have a working phone system and want to retire the old circuits but keep the hardware. A hosted platform replaces both. BluIP offers either one, so the choice comes down to what you want to keep.

Trunks are a service with no equipment to replace, and BluIP handles the maintenance.

With no hardware to wear out, the question becomes capacity. You add channels as call volume grows and release them when it falls. We monitor the trunks around the clock and work on alerts before your team needs to report a problem.

Yes. Our product for Teams is Cloud Calling for Microsoft Teams, one calling plan that you choose to deploy as Direct Routing as a Service or Operator Connect.

With Operator Connect, you select BluIP in the Teams admin center and we connect your tenant. With Direct Routing as a Service, BluIP hosts and runs the session border controllers in the cloud, so there is no session border controller for your team to buy, run or configure. Direct Routing as a Service fits best when Teams users need to share one dial plan with users on other phone systems.

Count the calls you carry at once in your busiest fifteen minutes, then add room to grow.

Total monthly minutes do not tell you this. The busiest moment sets the channel count, and reservation lines, dispatch desks and contact centers peak on predictable schedules. We size trunks from your existing call records and leave room to add channels without a new order.

Calls fail over to cellular backup, which we include on every SIP trunking solution.

Cellular backup is our main failover, and we propose it with every solution by default. Failover routing is also set up before launch and tested during cutover, so calls can move to another location, a mobile group or a queue in our cloud contact center.

Yes. Call-rate limits, blocked destinations and alerts are on by default for every phone number on your trunks.

Toll fraud is when attackers get into a phone system and place expensive international calls, often over a weekend. Limits that trip automatically stop it while it is happening. The same protection comes with our Cloud PBX. BluIP also documents where call records are stored, how long they are kept and who can see them.

STIR/SHAKEN is the system carriers use to confirm a call is legitimate, so it decides whether your calls get flagged as spam.

The originating carrier signs each call so the receiving carrier can check it. The level of trust depends on how your numbers are registered and whether the originating carrier can vouch for them. Branded calling (showing your company name) builds on the same system, so number registration needs to be right before you port.

Yes. Your local and toll-free numbers move to BluIP as part of the migration.

Timing depends on the number type and your current carrier, and toll-free numbers often move on a different schedule than local ones. Your project manager gives you dated milestones. Nothing cuts over until the transfers are confirmed and the setup has been tested.

Look for published uptime, live network status, 24/7 support and a native connection to AI, so calls can be answered in the cloud without giving up call quality or volume.

BluIP holds 99.999% uptime, posts live status at status.bluip.com and supports its trunks 24 hours a day. AIVA, our AI receptionist, connects directly to BluIP SIP trunks and answers calls in the cloud.