Historical
T1.401a-2001
Supplement to T1.401-2001 - Network - to - Customer Installation Interfaces - Analog Voicegrade Switched Access Lines Using Loop-Start and Ground-Start Signaling
This standard replaces subclause 8.1.2.1 and Figure 16 to reflect the allowance of a maximum Customer Installation (CI) resistance of 430 + during dial pulsing, and to provide additional clarification of requirements.
Alliance For Telecommunications Industry Solutions [atis]