ITU-T RECOMMENDATION E.301 – Impact of non-voice applications on the telephone network
1 Introduction
2 Signalling and transmission considerations
    2.1 Signalling
    2.2 Transmission
        2.2.1 Interference to transmission systems
        2.2.2 Interference by transmission systems
    2.3 Potential solutions
3 Traffic profiles
4 Special provisions for end-to-end digital connectivity
ANNEX A – Teletraffic characteristics of non-voice traffic
    A.1 Mean call duration
    A.2 24-hour traffic profile