Revisi per 1 April 2011 11.15 sunting Stephrine (bicara \| kontrib) 3 suntingan Tidak ada ringkasan suntingan ← Revisi sebelumnya		Revisi per 13 Agustus 2013 15.16 sunting balikkan 139.192.51.113 (bicara) →Referensi Revisi selanjutnya →
Baris 54: == Referensi == ([[Istimewa:Kontribusi pengguna/139.192.51.113\|139.192.51.113]] 13 Agustus 2013 15.16 (UTC)) * Abrahams, John R. & Mauro Lollo. (2003). Centrex or PBX The Impact of IP. Norwood : Artech House, Inc. * Jones, S., Kovac, R. & Groom F.M. (2009). Introduction To Communication Technologies : A Guide for Non – Engineers. Boca Raton. FL : CRC Press * Muller, Nathan. (2002). Desktop Encyclopedia of Telecommunications. New York: McGraw-Hill. * Sulkin. Allan. (2002). PBX Systems For IP Telephony. New York : McGraw-Hill. * http://www.1a2guru.com/1a2technology.html [[Kategori:Komunikasi]]

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