TOTO,
we're not in Kansas anymore...

A server error occured and unexplained things are happening around us.

pablomr12020

18 18 telephony systemsfixed networks11 25 25 history of the telephone22 20 20 in 1876 a. graham bell invented the first telephone 33 the first telep

Want to create a project like this?

Fixed telephony 2 | Presentation by pablomr12020