Nokia 8850 Manual Suplementar

AT Command Set for Nokia 8850

+DS Data Compression

This command controls the V.42bis and MNP5 data compression functions. V.42bis
can be used with transparent and non-transparent data services and MNP5 can be
used only with transparent data service. The data service is selected with the
command AT+CBST. (V.25ter section 6.6.1.)

Syntax:

AT+DS=[<dir>[,<neg> [,<P1>[,<P2>]]]]

Set compression parameters.

AT+DS?

Query current setting.
Response is +DS: <dir>,<neg>,
<P1>,<P2>.

AT+DS=?

Show supported values.
Response is +DS: (list of supported
<dir>'s), (list of supported <neg>'s), (list of
supported <P1>'s), (list of supported
<P2>'s).

Parameters:

<dir>
0

no compression (V.42bis P0=0)

V.42bis transmit only or MNP5

V.42bis receive only or MNP5

V.42bis both directions or MNP5

<neg>
0

do not disconnect if compression is not
negotiated by the remote DCE as
specified in <direction>

disconnect if compression is not
negotiated by the re-mote DCE as
specified in <direction>

<P1>

maximum number of dictionary entries
which should be negotiated, 512 to 2048

<P2>

maximum string length to be negotiated, 6
to 32, de-fault 20 (V.42bis P2).

+GCAP Request Complete Capabilities List

This command displays product information on the overall capabilities of the product.
Response may differ depending on the implemented features in a product. (V.25ter
section 6.1.9.)

Syntax:

AT+GCAP

Display product capabilities.

+GMI Request TA Manufacturer Identification

This command displays the TA manufacturer identification.(V.25ter section 6.1.4.)

Syntax:

AT+GMI

Display manufacturer identification.

+GMM Request TA Model Identification

This command displays the TA model identification. Note that in the case of a product
with TA and ME in the same physical entity, the response of the command +CGMM
is identical. (V.25ter section 6.1.5.)

Syntax:

AT+GMM

Display model identification.