000 00316nam a2200121Ia 4500
008 160523s9999 xx 000 0 und d
020 _a9-814-12635-7
100 _aBellamy, J. C
245 _aDigital telephony
250 _a3rd. Edition.
260 _aNew York
_bJohn Wiley & Sons
_c2003
300 _axxv, 643p.
999 _c34993
_d34993