Use a 2 prong motorola HT speaker mic on a 3.5mm cellphone?

[poser]

Out of curiosity, is there an adapter for using 2 prong motorola accessories on a 3.5mm jack cell phone?

[motorolo]

Out of curiosity, is there an adapter for using 2 prong motorola accessories on a 3.5mm jack cell phone?

While I have no idea if there exists such an adapter (and I'd have to guess not), you may want to check the characteristic impedance of the mic element that jack is designed for before you start to plug anything into it. If you have a substantial impedance match between devices, you stand the chance of damaging either the phone or the mic.

Besides that, the audio path on a cell phone is constant-open when a call is in progress, which is the exact opposite principle of operation of a speaker mic. Even if you did find an adapter, I don't think you would get very far here. What exactly are you trying to do with the phone?

[motorolo]

Sorry -- just to clarify, that should read as impedance mismatch, not impedance match. Still, that's probably only one of many problems with this idea...

[abrasowski]

poser
If you are asking this question I am assuming you are trying to get the same end result as myself:
you have "push-to-talk" phones and you want to be able to use a speaker mic with them? am I correct?
I have been researching this for a while, and what I decided to do is purchase a cheap "ptt" headset designed for my paticular phone, and then splice it and route the talk, mic, and speaker buttons to a corresponding speaker mic...

We'll see how it works