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These phone numbers are connected to an IVR menu, with the purpose of testing and debugging audio in the calls. The IVR includes some options, including DTMF read back, Recording and playback, Milliwatt tone, Date and Time reading, etc.


Call testing menu:

1 For listen to all prompts available on the PBX

2 For test and read DTMF

3 Echo Test

4 Music on Hold

5 Test conference number

6 Milliwatt Beep Test

7 CallerID Reading

8 Current date and time (UTC)

9 Inline DTMF Test (Real-time when each key pressed)

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POTS/PSTN Numbers for testing .


+1 (631) 240 3912 -- New York, USA

(Provider: BulkVS)

Same numbers as Sip URI for test (ENUM in action):

Dialing from any  free SIP  account like linphone, iptel, etc :

sip:+16312403912@enum.disruptive-telecom.com