Alcatel-Lucent omniacces-voip gateway Manual Do Utilizador
VoIP Commands
Page 5-35
The E1 (QSIG/ISDN signaling) interface uses a maximum of 32 DS-0 (64 Kbps) channels, has
a capacity of 2.048 Mbps, and follows A-law companding which is used in Europe. This inter-
face is a European CEPT (Conference of European Postal and Telecommunications Adminis-
trations) carrier. Thirty channels can be used for voice. E1 uses timeslots rather than robbed-
bit signaling. Timeslot 0 is for framing (synchronization) and timeslot 16 is for signaling
(either Common Channel Signaling (CCS), i.e., (QSIG/ISDN), or Channel Associated Signaling
(CAS)/R2, handshaking on multi-frequency signaling digit). Timeslot 1-15 and 16-31 are for
voice channels.
a capacity of 2.048 Mbps, and follows A-law companding which is used in Europe. This inter-
face is a European CEPT (Conference of European Postal and Telecommunications Adminis-
trations) carrier. Thirty channels can be used for voice. E1 uses timeslots rather than robbed-
bit signaling. Timeslot 0 is for framing (synchronization) and timeslot 16 is for signaling
(either Common Channel Signaling (CCS), i.e., (QSIG/ISDN), or Channel Associated Signaling
(CAS)/R2, handshaking on multi-frequency signaling digit). Timeslot 1-15 and 16-31 are for
voice channels.
The E1 ISDN PRI interface uses a maximum of 32 DS-0 (64 Kbps) channels, and has a capac-
ity of 2.048 Mbps. The interface follows A-law companding and is a European CEPT carrier.
Two channels are D (data) channels. Channel 16 is reserved as a control channel. Channel 0
is reserved for framing. Remaining channels are B (bearer) channels.
ity of 2.048 Mbps. The interface follows A-law companding and is a European CEPT carrier.
Two channels are D (data) channels. Channel 16 is reserved as a control channel. Channel 0
is reserved for framing. Remaining channels are B (bearer) channels.
The BRI E1 (Euro ISDN) interface uses a maximum of 3 DS-0 (64 Kbps) channels, and has a
capacity of 2.048 Mbps. The interface follows A-law companding and is a European CEPT
carrier. Two voice channels are B (B1 and B2 bearer) channels supported at 64 Kbps; another
channel supports data at 16 Kbps. Channel 0 is reserved as a control channel. This interface is
only supported on the BRI voice switching digital daughtercard (VSB).
capacity of 2.048 Mbps. The interface follows A-law companding and is a European CEPT
carrier. Two voice channels are B (B1 and B2 bearer) channels supported at 64 Kbps; another
channel supports data at 16 Kbps. Channel 0 is reserved as a control channel. This interface is
only supported on the BRI voice switching digital daughtercard (VSB).
♦ Note ♦
When used separately, the terms E1 and ETSI both
entail European PRI and BRI interfaces. E1 ETSI used
together as one term refers specifically to Euro PRI.
entail European PRI and BRI interfaces. E1 ETSI used
together as one term refers specifically to Euro PRI.