Fritz Fon 7150 Can't find speaker...

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Hi...
I'm sorry that I can't write in in German, but I know that I can find solution here...
I bought from ebay Fritz Fon 7150 but there wasn't speaker inside the base I can't even find it's pins...Can you please point where are speaker pins...
Thank you...

 

[KunterBunter]

If you can't find one, then most probably there isn't one the base
Hint: There is a speaker in the handset.

 

[-=xXx=-]

I don't think so because there is place for speaker in the base and in handset is option for the base speaker...
There must be some pins for speaker on board...
This is very strange...

 

[-=xXx=-]

So, does someone found any solution how to solder speaker inside ?