Technical data

62
AT +iW<n> Defers receive notifications to <n> bytes/millisecond. <n> should be in the range of
0 ... 64000.
AT +iX<n> Respects read block size and defers receive notifications. <n> should be in the
range of 0 ... 64000.
AT +iY<n> Defers transmission to <n> bytes/millisecond. <n> should be in the range of 0 ... 8.
AT +iZ<n> Splits large frames into <n> byte segments. <n> should be in the range of 0 ...
2048.
AT
+iU=<BC>|<BC/
LLC>
Sometimes the Service Indicator and Additional Service Indicator are not flexible
enough to indicate the necessary information in bearer capabilities (BC) and low-
layer compatibility (LLC) that the user wants to provide for an outgoing call. In this
case, the user can set these values directly. For example, to indicate a V.110 call
with 38400 bps and the appropriate flow control option, the user can enter the
command: AT+IU=<8890214d00bb> to specify the BC value. The provided BC and
LLC values are used without any verification (except max. length of information
element) to create the SETUP message sent over the D-channel. This allows the use
of proprietary BC/LLC values not yet covered by standards. See Call parameter
(BC/LLC) selection on page 73 for details.
Example: If the BC value is 8890, enter AT +iU<8890>. If the of each of the BC and
the LLC is 8890, enter AT +iU<8890/8890>.
AT +iI Reserved.
AT +iE=<Mode> Mode Global TTY mode. See Incoming RAS call type autodetection on page
69 for details.
AT&F16
+IE=pia
fs32k
China 32K PIAFS link
AT&F17
+IE=pia
fs64k
China 64K PIAFS link
AT&F18
+IE=pia
fs
China variable speed PIAFS link
AT+IE=
none
Resets the tty interfaces to "default" mode (i.e. signaling information will
be used to determine the call type)
AT
+iQ=<binding>
String Binding. See TTY "channel pool" mode on page 74 for details.
oX Bind TTY to board X for outgoing calls
iX Bind TTY to board X for incoming calls
aX Bind TTY to board X for the calls
o0 Erase TTY binding for outgoing calls