The Test Numbers

These numbers connect to a useful IVR script to help with audio quality, DTMF testing, and a simple conference bridge.  I use this test script almost daily when I'm working with phones, WiFi, smartphones, soft clients and trying to figure out why calls sound awful.

Menu options include:

1. Record and playback - use the # key to stop the recording
2. DTMF testing - Enter a string of DTMF keys and press # to get a read out
3. Real time Echo test - Press * to skip the intro, press # to return to the main menu
4. Music on Hold - Press # to skip to the next sample
5. Conference Bridge - Press *8 to exit conference bridge
6. 0-4Khz audio sweep
7. Caller ID readback
8. Real time DTMF test (instant readback of key pressed)
9. Asterisk Milliwatt tone

       * then a 4 digit feature code:

                 1001 - looping time readback - ZULU time

Use option 0 to leave any comments, complaints or suggestions for additional features!

PSTN numbers:

+1 416 342 9562

(Toronto number provided by AcroVoice)   

+1 631 791 8378

(New York number provided by Callcentric)   

+1 250 412 5922

(British Columbia number provided by AcroVoice)   

+353 1 687 7776

(Dublin number provided by IPTelecom Ireland)  

+44 20 3026 4621

(UK number provided by IPTelecom Ireland)

+52 55 9317 0592

(Mexico City number provided by FlyNumber.com )

SIP URIs:  (Supporting PCMU, PCMA and G722)

       sip:[email protected]
       sip:[email protected]
       sip:[email protected]
       sip:[email protected]
       sip:[email protected]

       sip:[email protected] 

       sip:[email protected]

Feedback:  email  T[email protected]   Follow on X/Twitter: @TheTestCall

Rest in Peace Mike Sandman

Updated July 20, 2026 to remove retired getonsip.com service.