标题: ETSI EG 201 973-1 V1.2.1 (2005-03) [打印本页] 作者: t7345s 时间: 2015-2-11 23:28:52 标题: ETSI EG 201 973-1 V1.2.1 (2005-03)
ETSI EG 201 973-1 V1.2.1 (2005-03)
ETSI Guide
Access and Terminals (AT);
Public Switched Telephone Network;
Support of legacy terminals
by Broadband IP networks and equipment;
Part 1: General (common part covering
both PSTN Analogue and ISDN TE)