Can I record from a mobile phone's PHF socket?

Well just get a socket doubler from Maplin and use the headset.

Hi Mark, I guess you didn't check my link. It shows the plug is a 4-pole jack.

This is probably not the answer you are looking for but many phones can record conversations through the built in sound recorder on the phone.

However, I'm sure its possible, like most things but I lack the intelligence and know-how to answer!

Dan

OTOH Maplin do sell the plug and socket at any rate and you could lash up the rest of it yourself

Plug

The original link provided by the OP mentions 2.5mm, not 3.5mm

Secondly, it shows it has 4 conductors (Speaker+, Mic+, Speaker-, Mic-). As they hare separate grounds, you cannot get by with just a stereo

I've seen 4 conductor 3.5mm plugs in Maplin, but never 2.5mm versions. For these, I'd just buy a cheap 2.5mm 4 conductor handsfree kit and cut the wires (leaving plenty of cable from plug to end) and wire it into the cable.

My mistake. It is 2.5mm and not 3.5mm. However think I need a plug and also a socket then I can connect the two in a way such that I can plug in any PHF and the recording feed comes from the connection between the socket and the plug going into the handset.

PHF ------> >-----|-----> >------handset | | | feed to recorder

As you say, getting the plug is easy but I will have to try a specialist dealer for the socket although it might still be a long search.

ALternatively it be best to take a recording feed from near the earpiece of the PHF if there is enough side tone present to hear both side of the conversation.

I wonder if anyone has any experience of trying this.

Hi Mark, thank you very much for checking out the parts at Maplin. From the diagram I still think I will need four positives plus their screening.

If Nokia have what is effectively a two connection PHF then I guess they would not use a 4-way jack plug.