Verilink Productivity 500 (34-00236) Product Manual - Manual (Page 72)

Page 72 500 TA BONDING Protocol
DTE speed (56 kbps, 64 kbps, 112 kbps, or 128 kbps), and the CS LED will be
on.
NOTE: When a rate multiple of 2 is negotiated, both B-Channels are used and
therefore a voice call is prevented from being made for the duration of the
BONDING call. Likewise, a BONDING call with a rate multiplier of 2 is not
possible when a voice call is established.
If the rate multiple is set to 1 on either the originator or answerer, the second
call will not be made and data mode will be entered immediately after negotia-
tion. The terminal screen will indicate the speed the call connected at on units
so equipped.
If the 500 TA is answering a multi-channel call, the Voice directory number
will be used for the second call. If you are using a point-to-point line with only
one Directory Number, then upon answering a BONDING call requesting two
channels this directory number will be sent to the origination side (the same
number as the first one dialed). This is because a point-to-point line can receive
two calls using the same Directory Number. AT&T 5E5/5E6 can also be con-
figured to receive two calls using the same Directory Number.
DISCONNECTING A BONDING CALL
Disconnecting by any normal means disconnects all BONDING channels. If
either channel is disconnected by the switch, the entire call is disconnected by
the 500 TA. The disconnection can be validated by the CS LED being off.