| 000 | 00391nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 161214s9999 xx 000 0 und d | ||
| 020 |
_a0596008686 _c(pbk) |
||
| 082 |
_223 _a621.38212 _bWAL |
||
| 100 | _aWallingford, Theodore | ||
| 245 | 0 | _aSwitching to VoIP | |
| 260 |
_aBeijing: _bO'Reilly, _c2005 |
||
| 300 |
_axxi, 477 p.; _bill.: _c24 cm. |
||
| 650 | _aInternet telephony | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c3275 _d3275 |
||