| 1. | Broadband integrated service digital network , b - isdn 宽带综合业务数字网 |
| 2. | Bisdn broadband integrated services digital network 宽带综合业务数字网 |
| 3. | Isdn . . integrated services digital network - telephony terminals - payphones 综合业务数字网 |
| 4. | Isnd for integrated services digital network 综合业务数字网 |
| 5. | Isdn for integrated services digital network 综合业务数字网 |
| 6. | Isdn data link layer specification for frame mode bearer services 综合业务数字网帧模式承载业务数据链路层规范 |
| 7. | Requirements for clock and synchronization equipment used in the digital network 数字网内时钟和同步设备的进网要求 |
| 8. | Bri : basic rate isdn 基本速率的综合业务数字网 |
| 9. | Characteristics of the electrical interface at hierarchical bit rate for digital network 数字网系列比特率电接口特性 |
| 10. | Narrowband isdn n - isdn 窄带综合业务数字网 |