DT700 series SIP phone analog audio output adapter?

[phadobas]

I have many DT700 series SIP phones, and I have a situation where I need to connect a loud-speaker (or amp) to the phone, so a bigger audience can hear a phone converastion in a conference room. There are many different connectors on the bottom-side of the phone and I would imagine NEC made those for certain adaptors. I'm really just looking for an analog output of the phone conversation on a standard earphone-type connector that I can connect to the amplifying system. And the audio would be output even if the phone-conversation happens using the speakerphone (ie, the radioshack recording adapter that connects to the handset cord, is out-of question).

Anybody heard of such adapter?

 

[belevedere]

I do not know of such an adaptor for an IP phone. Usually a 3rd party SIP conference unit or an analog conference unit is used. Polycom has been tested and approved byNEC for such an application. A 3rd party SIP license will be required.

 

[phadobas]

I do have to use a DT700 SIP phone as it is being used as an office phone mostly. I can't have some huge Polycom sitting on somebody's desk.
Anyways, since I posted my question, I came across this:

http://www.telecomcreations.com/NEC_ADA_L_UNIT_DT330_DT730_DT750_ADA_Adapter_p/680601.htm

It seems very promosing and I'm getting one to test.

 

[belevedere]

Let us know if it works out.

 

[phadobas]

This was exactly what I wanted: an NEC-made adapter, connecting to a pre-made connector on the bottom of the phone, providing an analog audio output port, as well as an input port in order to inject auctio into the phone conversation. Works like a charm!