Upgrade 3CX to v18 and get it hosted free!

Phone Numbers

Author image

You can call the following VoIP numbers for free. From a softphone, just copy&paste the full SIP address (sip:[email protected]).
From a hardware SIP adapter, copy & paste the full SIP address into your speed dial web page. All of these numbers worked in July 2011.

Dialing through PSTN

  • TheTestCall +1 631-791-8378 / +1 416-342-9562 / +1 250 412 5922 / +44 161 353 2462 / +883 5100 0119 6512 record/playback, dtmf tests, realtime echo, MOH, audio bridge, caller-id readback and more.

Dialing through SIP URI (all Destinations Listed Working as of Jan 1, 2013)

Dialing through ENUM

  • ENUM Test +43 720 0101011 This number is reachable only via ENUM+SIP. After connect you will hear the word “ENUM” followed by some music.
  • ENUM Test +43 720 0101012 This number is reachable only via ENUM+SIP. You get connected to Asterisk’s Echo application.
  • ENUM Test +43 720 0101010 This number is reachable via PSTN and ENUM+SIP. If you get connected via ENUM you will hear the word “ENUM” followed by some music. If you connect via PSTN you will only hear some music.
  • ENUM Test +43 780 004711 This number is reachable via PSTN and ENUM+SIP. Both variants will be delivered to this Asterisk box via SIP. This test number is to test the reachability of Austrian’s new ‘+43 780’ number range (ENUM based number range). After connect you will hear the word “ENUM” followed by some music.
  • ENUM Test +43 780 0047111 This number is reachable via PSTN and ENUM+SIP. Both variants will be delivered to this Asterisk box via SIP. This test number is to test the reachability of Austrian’s new ‘+43 780’ number range (ENUM based number range). You get connected to Asterisk’s Echo application. resolves to [sip:[email protected]].
  • ENUM Test +43 780 0047112 This number is reachable via PSTN and ENUM+SIP. Both variants will be delivered to this Asterisk box via SIP. This test number is to test the reachability of Austrian’s new ‘+43 780’ number range (ENUM based number range). You get ring-back indication for few seconds, and then you get busy indication (toll-free testing).
  • ENUM Test +43 780 0047113 This number is reachable via PSTN and ENUM+SIP. Both variants will be delivered to this Asterisk box via SIP. After pickup, you will hear a constant 1.000 Hz tone. You will hear tone interruptions if the clients’s Jitter-Buffer can’t handle the Jitter caused by your Internet connectivity.

Notes:
Please list only *open* VoIP phone numbers and Free VoIP Networks, meaning that you have successfully made a call to that number from a SIP proxy located in a different domain. Some numbers such as Vonage numbers can only be called for free from other Vonage phones, so Vonage is NOT open to calls from other SIP proxies.

See Also

Related Posts:

Get 3CX - Absolutely Free!
Link up your team and customers Phone System Live Chat Video Conferencing

Hosted or Self-managed. Up to 10 users free forever. No credit card. Try risk free.

3CX
A 3CX Account with that email already exists. You will be redirected to the Customer Portal to sign in or reset your password if you've forgotten it.