What modem is voiced by grandmothers from the cartoon?

Question

network hardware

Many people are familiar with the video from the cartoon, in which grandmothers voice the modem . I had a question, what kind of modem do they sound?
It is clear from the sound that the connection is being established with the transition to 56k, and the sound was different for different modems. Most of all I remember US Robotics, it had a couple of characteristic "metal" strums. The rest I don't remember. There are no these strumming here, some other modem. What modem is this?

Answer 1

It seems that everyone is the same, isn't it on the provider's line that the sound goes?