Auto answer incoming calls does not work in BGS5T | Telit Cinterion IoT Developer Community

The BGS5T with parameter ATS0=2 and saved with AT&W from the port ASC0 to respond to the second RING.

Actually it answer in the third RING and the CONNECT does not appear, and no data is received at the port ASC0. But in the GSM modem caller, if it appears the CONNECT and the DCD is on.

Only it works properly if ATS0=2 to port ASC0 is sent and not power off the BGS5T, and the call (CSD) is made at this time with another GSM modem.

If the BGS5T make a call (CSD) to another GSM modem, it works correctly.

Steps to reproduce the problem:

ATS0=2
AT&W

<----- Power OFF

wait 5 sg

<----- Power ON

^SYSLOADING

^SYSSTART

+PBREADY

ATS0?
002
OK

<----- Make the call (CSD) with another GSM modem

RING

RING

RING

<----- The BGS5T goes off-hook, but CONNECT does not appear and not receive data from the other modem


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Cinterion
BGS5
REVISION 01.100
A-REVISION 00.000.10
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We appreciate your help.