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SIP Trunking Phone Service

Simplify your
with Carrier-Connect

Carrier-Connect™ SIP trunking service seamlessly integrates with any on-premises phone system without additional hardware. Simplify your communications with phone service delivered over a single data connection.

SIP Trunking Made Simple

RingLeader offers native SIP trunking and redundancy services for businesses looking for both reliability and security. No additional hardware required to get started. Say goodbye to expensive SIP fees and PBX add-ons.

  • Secure communication
  • Reliable redundancy solutions
  • Push-conferencing-enabled
  • No hardware required
  • Unmatched voice quality
  • Local, long distance and toll-free phone numbers

Supported Vendors

Carrier-Connect is compatible with PBX vendors including:

  • ShoreTel logo
  • ZULTYS logo
  • Microsoft Teams logo
  • Mitel logo


MicroSmall BusinessProfessionalPremiereEnterprise
5 Call Paths
Unlimited Call Paths
Unlimited Call Paths
Unlimited Call Paths
Unlimited Call Paths
2.5K Shared Minutes
10K Minutes Included*
30K Minutes Included*
50K Minutes Included*
100K Minutes Included*
1 New Phone Number6 New Phone Numbers30 New Phone Numbers40 New Phone Numbers50 New Phone Numbers
*Does not include international or toll-free

Service Options

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Phone Numbers

RingLeader phone numbers can be used for direct inward with options for e911 registration and Caller ID. Give your business a presence outside of its physical location with local area-code phone numbers.

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Conference Bridge

Conference Bridge lets you cut down on business travel and make it easy to connect a group of people on the phone at a moment’s notice. “Reservation-less” Conference Bridge is available 24/7. Every user has a unique passcode, which means there’s no need to schedule each time a bridge is needed.

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Ring Faxing

Use your Carrier-Connect minutes for email faxing in addition to voice. Each fax to email account can have multiple users receive inbound faxing. Only one administrator of the account can send outbound faxes. Choose the mode of faxing that best fits your needs.

Backup Phone Service Strategies

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Seamlessly reroute incoming SIP calls to a wireless, PRI, or analog destination if your phone system goes offline. Once your service is restored, our auto-detect failover automatically routes your incoming calls back to your original internal number.

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Disaster Recovery

In the case of an emergency, failover a primary phone service (SIP, analog, PRI or T1) to a RingLeader SIP Trunk.

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CrowdVoice Continuity

Mirror your on-premises PBX in the cloud with CrowdVoice Continuity. If a disaster strikes and your on-premises PBX goes offline, you can push the RingLeader mobile app out to your team to keep your business up and running.


Get your fast, no-obligation quote now.

Mitel logo
ShoreTel logo
Toshiba logo
esi logo
allworx logo
Asterisk logo
Panasonic logo
Cisco logo
Avaya logo
NEC logo
Microsoft Teams logo