[adontz]

Oh, nostalgia. I had a US Robotics 56K modem, which produced two bell-alike sounds during handshake. It was cool. I search for that specific sounds for years and cannot find.

[hackernudes]

https://m.youtube.com/watch?v=xalTFH5ht-k&t=99

This matches my memory of 56k dialup with the two BONGs.

And now I get to share my favorite AT command. M0 could mute the modem! M1 was quieter than the default. I will never understand why those weren't more common! Used like: ATM0DT

[vardump]

I never wanted to mute, because with sound you could hear a bad connection early and retry faster.

[orev]

And you could hear the call waiting beep if you didn’t have a dedicated line for the PC.

[johng]

Yup, this exactly.

[adontz]

Very similar, thank you so much

[BuildTheRobots]

I've also been searching for that double-bong for years.

Last time I asked, user hackmiester pointed me to https://goughlui.com/2016/05/03/project-the-definitive-colle...

The "Texas Instruments DSP based Modems" linking to USR-Sportster-bong-bong.wav is pretty close to what I remember.

edit: hackernudes reply is perfect. The youtube auto generated subtitles are pleasing too.

[flkiwi]

Me, before clicking: Man, I remember I had this USR modem that did this weird BONG sound during handshake. I wonder if anyone else in the comments remembers that.

Comments: YUP.