Session Initiation Protocol

American Telephone Company's SIP (Session Initiation Protocol) has become a catalytic force helping shape today's telecommunications industry. Our SIP service is designed for organizations of all sizes and provides calling packages to meet the needs of your business.

Benefits:

  • NO MORE RATE CENTER RESTRICTIONS! Port existing number's to ATC's SIP product from any major telecom provider
  • DID/DOD service available
  • Turn up's in day's not weeks
  • 24/7/365 monitoring
  • Setup multiple inbound and outbound routes
  • Custom calling plans

Flexibility:

  • Off hours porting and installs, ATC works around your schedule
  • NO CALL CENTERS TO DEAL WITH! Direct ATC NOC technicians to help manage your port, turn up, and any trouble shooting

Savings:

  • Lower usage related charges
  • Volume and term discount plans provide substantial savings on already competitive ATC rates
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