Local and access tandem
Tandem Hosting
Home your numbers on CarrierX local and access tandems, and exchange traffic with other carriers over IP instead of maintaining tandem trunks of your own.
Other carriers
- Incumbent carriers
- Interexchange carriers
- Wireless carriers
- Other CLECs
Local and access
CarrierX tandem
Where your number blocks home in the LERG
One interconnection
Your network
Your subscribers and number blocks
How it works
Your numbers home on our tandem, and calls reach you over IP
A tandem connects carriers that do not interconnect directly. With tandem hosting, CarrierX is the tandem your numbers home on.
- Your NPA-NXX and thousands-block assignments point to a CarrierX tandem in the LERG
- Other carriers route calls for your numbers to that tandem, as they would to any tandem
- CarrierX delivers those calls to your network over SIP, and carries your outbound calls the same way
- Local and long-distance traffic share one interconnection to CarrierX
Calls for your numbers
Live
Local and access
Two kinds of tandem, hosted on one network
Local tandem
Traffic between local carriers in the same LATA.
- Local calls between your subscribers and other local carriers' subscribers
- Interconnection with incumbent, competitive and wireless carriers in the LATA
- No direct trunks to each local carrier
Access tandem
Long-distance traffic between your network and interexchange carriers.
- Calls from interexchange carriers to your numbers
- Your subscribers' long-distance calls handed to interexchange carriers
- No trunks of your own to an incumbent access tandem
Why host with CarrierX
Leave tandem trunking to a carrier that runs it on IP
- Move off TDM tandem trunks as the industry retires them
- Run your network on SIP end to end, with CarrierX handling the tandem side
- Calls carried in high definition where the other carrier supports it
- Built on the CarrierX SBC, with routing, codec and access control per trunk
- CarrierX operates its own CLEC
Who it's for
Carriers that need a tandem without building one
CLECs
Home new or existing number blocks without trunking to each incumbent tandem.
Wireless carriers and MVNOs
Reach local and interexchange carriers through one IP interconnection.
VoIP and IP-enabled providers
Exchange traffic with the PSTN from an all-IP network, with no TDM equipment.
Getting started
How to get started
01
Review your numbers
Walk through your number blocks, LATAs and traffic with our team.
02
Interconnect and test
Build your SIP trunks to CarrierX and test calls in both directions.
03
Rehome in the LERG
Point your number blocks to the CarrierX tandem and move live traffic.
Contact us
Own your network with CarrierX
Talk to our team about how CarrierX can restructure your communications costs and put you in control.