# How to Bypass an IVR by Sending Digits

You can often bypass any Call Endpoint (Buyer) IVR by using Retreaver to send [DTMF](https://en.wikipedia.org/wiki/Dual-tone_multi-frequency_signaling) tones (key presses) on behalf of the caller.

Once on the Edit screen for your Call Endpoint (Buyer), near the top, you will find the field for **Send Digits**. In this field, use the letter `w` to represent a 0.5-second pause. You may find that entering `ww1` works for you, but it all depends on the unique IVR. You may find that when you place a test call that it doesn't seem to work. Try adding a `w` and try a test call again. This trial and error is how you arrive at the minimal pause before the system will allow a key press to be accepted.

We have encountered Call Endpoint (Buyer) IVR systems that allowed multiple key presses. Such as `www1www2`.

We have even encountered an IVR that required a Zip code entry. This use case ended up using `www1wwwww90210` in order to bypass this. Since every IVR is different, this will always require a couple test calls to get just right.

> [!NOTE]
> Callers will continue to hear ringing or music-on-hold while the key presses are being processed, they will not hear any beeping as Retreaver bypasses the IVR.