IC UM91214B: Can I Find it on a regular phone??

[chui]

Im looking after this Item: IC UM91214B.

first of all: what is IC?

Now, I heard I can find one of these on a phone,
Is that true? and if yes...I will I reconize it?

thanks you!

 

[TheOne]

See this post
https://www.electro-tech-online.com...ost-3124&sid=c55c44d8e459a501614229c6ce554150

 

[chui]

thnks,
but it didnt answare any question of mine:
Can I get it on a regular phone? how shuold I reconize it inside a phone?

 

[Sebi]

Yes, You can find it in a pretty old phone. The chip have a spec.feature: switchable tone/pulse mode. The case is DIP16, 18, or 20 and the type printed always on the chip.