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HSDPA Standard At Commands Page 12 of 60 Version 1.2

The following diagram shows the naming convention of messages between MT2 and TE2.

Figure 1. Naming convention diagram

1.8. DTE-TA/DCE interface commands

Table 3. ITU-T V.250 commands relating to TE-TA interface

Command Req Description Support

E<value> Mand. Command echo

supported

Q<value> Mand. Result code suppression

supported

S3 Mand. Command line termination character supported

S4 Mand. Response formatting character

supported

S5 Mand. Command line editing character

supported

V<value> Mand. DCE response format

supported

X<value> Mand. Result code selection and call progress monitoring control

supported

&C<value> Mand. Circuit 109 DCE RLSD (DCD) behavior

supported

&D<value> Mand. Circuit 108 DTE DTR behavior

supported

+IPR=<rate> Opt.

Fixed Rm Rate. This numeric extended-format parameter

specifies the data rate at which the MT2 will accept

command set, in addition to 1200 bit/s or 9600 bit/s (as

required in EIA/TIA-602). It may be used to select operation

at rates at which the MT2 is not capable of automatically

detecting the data rate being used by the TE2.

115200bps. (Default)

+IPR? Displays current set value.

+IPR=? Displays range of (supported auto detectable rates),

(list of supported fixed-only rates). e.g. +IPR: (1200, 2400,

supported

Response (excluding AT)

TE2 MT2

Command (including AT)

TE2 MT2

Notification (excluding AT)

Indication (message)

TE2

MT2

Signal (H/W)