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Apakah itu Telefon IP?
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Amazon.com : Panasonic KX NT560-B - VoIP-Telefon - MGCP, RTP : Office Products
Yealink SIP-T31G Telefon IP, 2 linie VoIP, HD, Poe, 2 porty GigaEthernet Telepol Sklep Telekomunikacyjny
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IP telefon - Vikipedi
