Help to identify unknown devices by photos

[Uladzs]

The following are images of an electronic devices. I have not been able to identify its origin or purpose and any help or suggestions would be greatly appreciated. The device possibly has an attitude towards telephony or telecommunications. Thanks.

 

[DerStrom8]

Not necessarily a solution but certainly a clue, the IC on that board (PMB2400T) is a GSM receiver: https://pdf1.alldatasheet.com/datasheet-pdf/view/104660/SIEMENS/PMB2400.html

 

[Uladzs]

Not necessarily a solution but certainly a clue, the IC on that board (PMB2400T) is a GSM receiver: https://pdf1.alldatasheet.com/datasheet-pdf/view/104660/SIEMENS/PMB2400.html

Thank you very much for your reply
I hope this a clue will help

 

[Pommie]

The large chip (62256) is a 32k x 8 RAM that can be battery backed. Possibly to hold calibration values.

Mike.

 

[Uladzs]

The large chip (62256) is a 32k x 8 RAM that can be battery backed. Possibly to hold calibration values.

Mike.

Thank you Mike!

 

[hyedenny]

The 26mHz oscillator tells me it's a cell phone. The TDA1011 audio amplifier cinches it.

 

[Uladzs]

still this is a unknown and unidentified device

 

[cowboybob]

Welcome to ETO, Uladzs!

... still this is a unknown and unidentified device ...

Well, since there appear to be connectors that, obviously, must attach to additional devices (Screen?, keyboard, etc.?), and no enclosure(s), quite possibly none of us have ever actually owned or worked on the device to be able to definitively identify it.

You might try using:
Search for images with reverse image search - Google Search Help
https://support.google.com/websearch/answer/1325808?hl=en
.com to see if google can find more info.