Payment Plan

  • 25 CPS: $49/M
  • 50 CPS: $99/M
  • 100 CPS: $129/M
  • 150 CPS: $169/M
  • 200 CPS: $299/M
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Call filter services on USA VoIP outbound traffic focus on ensuring that outgoing calls from a VoIP network comply with regulatory standards and are not flagged as spam or fraudulent by caller.

ANI Based Call Filters

  • Non US originating numbers
  • Wireless (mobile) originating numbers
  • Toll free originating numbers
  • Invalid ANI (Caller ID)
  • Stir Shaken Header
  • Block List
  • DNO

DNIS Based Call Filters

  • Block wireless numbers
  • Invalid numbers
  • 404 not found numbers
  • Non US numbers
  • Block List

How it Works?

Our system provides feedback using two specific SIP response codes: 403 and 503. These codes are used to indicate the status of the DNIS or ANI number involved in the call, helping your server determine the appropriate routing action.


SIP Code 503: Clean Number

  • Response: 503
  • Meaning: If a number is deemed clean, the system will return a 503 SIP response.
  • Action: Upon receiving a 503 response, your routing server should proceed to route the call to the next vendor.

SIP Code 403: Forbidden Number

  • Response: 403 Forbidden
  • Meaning: If a number is identified as Forbidden, the system will return a 403 SIP response.
  • Action: Upon receiving a 403 response, your routing server should terminate the call, as the DNIS or ANI number is considered Forbidden.

SIP Code 403: Forbidden Number

This system can be integrated with any server capable of handling call failover routing based on SIP responses.

  • Scenario 1: If your server receives a 403 SIP response, it indicates that the number is dirty. Consequently, your routing server should end the call immediately.
  • Scenario 2: If your server receives a 503 SIP response, it indicates that the number is clean. Your routing server should then proceed to route the call to the next available vendor.