| 000 | 00389nam a2200157Ia 4500 | ||
|---|---|---|---|
| 020 | _a0071375686 | ||
| 082 |
_a621.382 _bSUP |
||
| 100 |
_aSulkin, Allan _996513 |
||
| 245 |
_aPBX systems for IP telephony _cAllan Sulkin |
||
| 260 |
_aNew York: _bMcGraw-Hill, _c2002. |
||
| 300 | _bviii, 487p. | ||
| 500 | _aPB | ||
| 546 | _aEng | ||
| 650 |
_aCommunication engineering _996514 |
||
| 942 | _cBK | ||
| 999 |
_c27133 _d27133 |
||