Call Bumping - ZyXEL Communications omni TA128 User Manual

Related commands:
AT&J3 - Enable Multilink PPP.
ATDI<num1>[+<num2>] - Dial Multilink PPP with num1
twice or with num1 and num2 if they differ.
ATS61.3 = 0 - Use rotate method to bundle both channels
(default).
ATS61.3 = 1 - Use split method to bundle both channels.
ATEPDn = <num> - Set End Point Discriminator(EPD) for
class n (0-5). I is not required to change the default settings in
most cases unless your ISP provides these values.

Call bumping

You can place or answer a voice call from a device that is attached
to one of the POTS ports while Multilink PPP is active. The TA128
drops one of the channels automatically and uses it for voice calls.
Once a voice call ends, TA128 automatically reestablishes the
channel. For fully disconnecting with the central switch, there is a
delay time between on-hook phone and channel reestablishment.
The delay for reestablishing the channel is 10 seconds. During call
bumping, the traffic for BOD is still under calculation. In other
words, the add persist time is calculated from the time when the
traffic is above the add threshold whether or not the phone is on-
hook or off-hook. However, it won't dial until the phone has been
on-hook for 10 seconds.
Call bumping works for both client (dialing) side and server
(answering) side. However, the channel reestablishment is only
effective on the client side.
Related commands:
ATCE0 - Disable the call bumping function.
ATCE1 - Enable the call bumping function (default).
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