Vega INSYS Modem GPRS 5.0 Bedienungsanleitung PDF herunterladen (Seite 60)

Functions INSYS GPRS 5.0 serial

tion will be sent to the remote terminal only after the CSD connec-

tion is ended.

 If data is transmitted via GPRS during the CSD call (e.g. via a TCP

connection), it may occur that the caller receives the BUSY signal. In

this case, the dial-in should be repeated. The rule of thumb would

be that the CSD call will be forwarded after a minimum of approxi-

mately 30 seconds after the last data byte was transmitted via

GPRS.

o A GPRS dial-in (TCP Listen mode, waiting for incoming TCP connection): In

this case, the TCP Listen mode is terminated for the duration of the CSD call

(+PPP-IP RELEASE), and restarted afterwards (+PPP-IP SETUP).

Due to the additional time which is required to terminate the TCP or the GPRS connec-

tion, the caller must be prepared for a slightly longer waiting period until the connection

is accepted. Example: If the INSYS GPRS 5.0 serial is set using ATS0=2 for accepting CSD

connections after two ring tones, in general actually 5 to 6 ring tones (RINGs) are re-

quired. Please set the number of rings to a minimum of three rings to ensure full func-

tionality, if you want to use automatic call answering.

6.3.1 CSD priority with caller authentification

Alternatively, our example can be set using the terminal program:

In general, activate selective call acceptance

Enter allowed phone number 1

AT**CLIP=1

AT**CLIP1=+49941586920

Activate CSDPRIO

AT**CSDPRIO=1

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Vega INSYS Modem GPRS 5.0 Bedienungsanleitung Seite 60