User manual

DIALLING WITH V.25.Bis 3-1

Chapter 3 DIALLING WITH V.25.Bis

In order to change from the Hayes to V.25bis command setting and vice-versa, the

value of Register 80 must be changed in each case.

• ATS80=33 (Change from Hayes to V.25bis Commands)

• CNLS80=1 (Change from V.25bis to Hayes Commands)

➮ Changes become active only after a modem reset (ATZ or CNLZ).

To carry out a dialling operation in V.25bis, the modem must be in Command

mode and must receive the CRI command from the computer, containing the fol-

lowing dialling information:

CRIxx...x;yy...y

orCRIxx...x

In these, the Variable x represents the sequence of characters to be dialled (tele-

phone number with dialling parameters), while the Variable y covers identiﬁcation

(optional) which is issued after an unsuccessful dialling operation.

For example:

CRI>=06897<<12345;67890

CRI dialling command

= Dialling pause 3 seconds

06897 STD code

<< Dialling pause 2 seconds

12345 Telephone number

; separation character

67890 Your own identiﬁcation code (your own telephone number)

Another example:

CRSn The modem dials the number which is stored with AT&Z=n

In addition, the command CNLnn enables you to use the AT commands to set up

an MNP connection, or to switch over the MNP mode. Here, the Variable nn rep-

resents all the AT commands. The following tables show the commands and mes-

sages with CCITT V.25bis and the valid dialling parameters.

Dieses Dokument wurde erstellt mit FrameMaker 4.0.4.