the format line t1 for the segnalazionedi stolen signals for use with transmission channel according to the standard ccitt to exclusive 32k bits per second adpcm.

摘要

T1 LINE FORMAT FOR ROBBED SIGNALING FOR USE WITH CCITT32K BIT PER SECOND ADPCM CLEAR CHANNEL TRANSMISSIONABSTRACT OF THE INVENTIONThis invention provides for uniformly distributingsignaling data in a T1 line format for unrestricted 32 kb/s and 64kb/s transmission channels. This scheme provides for placing aportion signaling information within each frame of a T1transmission. Digital switching systems may process thissignaling information more uniformly, instead of receiving 24channels of signaling information during one T1 frame. Thesignaling information provides the digital switching system withindications of such supervisory functions as on-hook, off-hook andswitching digits.