Two ways to connect your phone system to the outside world through DOCOMO PACIFIC's voice network — SIP Trunking over IP, or PRI Service on dedicated digital circuits. 

SIP Trucking Benefits

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  • Cost savings

    Bring voice and internet together with one provider — one connection, one bill, no separate voice circuits to rent.

  • Scalability

    Grow at your own pace — add channels as you hire, open new locations, or ramp up for peak season.

  • Local support

    Get installed and supported by our team right here in the Marianas — 24/7, 365 days a year.

  • Built for what's next

    Keep your voice service on the technology that's replacing them — and ready to pair with cloud services when you are.

PRI Service

Keep your existing digital (TDM) phone system running on dedicated voice trunks — with a clear migration path to SIP Trunking whenever you're ready.

PRI Service Benefits

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  • Proven reliability

    Experience consistent, carrier-grade call quality over a dedicated digital circuit engineered for voice.

  • Private by design

    Enjoy a dedicated circuit on DOCOMO PACIFIC's private network — never the public internet.

  • Protect your investment

    Get full value from the TDM PBX hardware you already own.

SIP Trucking Features

Property 1=Checked List
Flexible Channel Capacity
+

Order the exact number of simultaneous channels you need — no fixed circuit increments.

Property 1=User Cantact
Keep Your Numbers
+

Port your existing Guam and CNMI numbers, or add new local numbers as you expand.

Property 1=Inward Dialin
Direct Inward Dialing (DID)
+

Give every employee or department a direct number for cleaner call routing.

Property 1=Call ID
Caller ID & 911
+

Obtain outbound caller ID plus 911 routing tied to your registered business address.

Property 1=Desktop Mobile
Business Continuity Routing
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Forward inbound calls automatically to an alternate number if your site loses connectivity.

Best For

  • Mid-market businesses with an on-premises or cloud IP-PBX
  • Multi-site organizations consolidating voice across Guam and the CNMI
  • Contact centers that need to scale channel counts up or down
  • Businesses migrating from PRI to modern IP voice

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Frequently Asked Questions

Both connect your phone system to the public telephone network. SIP Trunking carries calls over an IP connection and scales channel by channel. PRI Service delivers calls over a dedicated digital connection with 23 channels, which suits older TDM phone systems.

In most cases, yes. IP-capable phone systems connect through SIP Trunking; older digital (TDM) systems connect through PRI Service. Not sure which you have? Our team will identify it during a consultation.

Yes. We support number porting from your current provider, so your business keeps the numbers your customers already know.

Yes. Your trunk supports as many simultaneous calls as the channels you order — and you can add capacity as you grow.

It depends on your site and the type of trunk. If our network already reaches your building, installation is faster; new builds take longer. Your account manager will give you a clear timeline during design.