Cox Digital Trunk is a reliable and secure communications solution that connects your PBX directly to the public switched telephone network.

Each of our Digital Trunk options provides clear digital transmission, reliable and secure connections, and advanced circuit quality once reserved only for the most sophisticated networks.

Whether your business requires scalable service to support call centers or remote employees, or encounters a large volume of daily inbound or outbound calling, we have the option to fit your need.

View Data Sheet

Choose the Cox Digital Trunk package that works best for your business:

  Cox DS-0 Digital Trunk Cox DS-1 Digital Trunk Cox PRI Digital Trunk
Common Uses More efficiently support DID and DOD numbers on a single digital facility Supports up to 24 individual voicegrade trunks

Allows aggregation of multiple analog trunks onto a single digital facility
Supports up to 23 individual voicegrade trunks

Allows control of individual channels of the DS-1 pipe for PBXs, LAN gateways and host computers
Interface 64 Kbps Connection with PBX System 1.544 Mbps Connection with PBX System ISDN Signaling with PBX System, LAN or Host Computers
Loop Start Yes Yes Yes
Ground Start
Yes Yes Yes
100% SONET Transmission Yes Yes Yes
DID, DOD and Two-Way Yes Yes Yes
Touchtone, Multi-frequency or Dial Pulse Signaling Yes Yes Yes
Automatic Number Identification (ANI)* Yes Yes Yes
Dial Number Identification Service (DNIS)* Yes Yes Yes
Handoff Interfaces RJ48X
DB15
RS232
RS530
RJ48X
DB15
RS232
RS530
RJ48X
DB15
RS232
RS530
Out-Of-Band Signaling     23 + D
23B + D
Backup     64 Kbps Voice-Grade D Channel
Shared     Yes, between PRI facilities

* Only available on dedicated service.

How your business benefits from Cox Digital Trunk:

  • More reliability. Our SONET-based, self-healing fiber-optic ring network, with both electronic redundancy and route diversity, provides greater reliability, uptime and security. Plus we proactively monitor our network 24/7 from our state-of-the-art Network Operations Centers (NOC) to be sure your connections are always operational.
  • Greater efficiency and flexibility. With three options to choose from, you can get the service that’s right for your business now and scalable to fit your needs in the future. Cox DS-0 and DS-1 Digital Trunks interface directly with your PBX system for more efficient support of DID and DOD numbers on a single digital facility. Plus, the DS-1 Digital Trunk supports two-way trunks so that you’re using your equipment more efficiently. For businesses with higher capacity needs, Cox Primary Rate Interface (PRI)+D13 Digital Trunk gives you the full benefits of ISDN signaling. This allows you to control individual channels on the DS-1 pipe to service PBXs, LAN gateways, and host computers while providing enhanced communications services.
  • Increased productivity. Our crystal-clear transmissions and superior circuit quality reduce signal impairments such as noise or cross-talk, which means your employees can work smarter and be more productive.
  • Increased savings. Cox Digital Trunk supports DIDs, DODs and two-way trunks, eliminating multiple voice-grade trunk terminations, and it uses existing PBX systems to define directionality of the trunk.
  • Easy upgrading. With high-capacity options always available, you can upgrade whenever you need to. Simply call your cox business representative and we’ll help you decide the best options to meet your immediate need.
  • Local customer support. As with all Cox services, you get a skillful, knowledgeable, local team dedicated to supporting your business.
 
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