Ats0, 1) than, Ac75 at command set – Siemens AC75 User Manual

Page 170

Advertising
background image

AC75 AT Command Set

7.12 ATS0

s

AC75_ATC_V01.002

Page 170 of 569

10/30/06

Confidential / Released

7.12

ATS0 Set number of rings before automatically answering a call

Syntax

Parameter Description

000

(&F)

Automatic answer mode is disabled.

001-255

Enable automatic answering after specified number of rings.

Notes

• This command works for MT data and fax calls.
• Autoanswering of CSD data and fax calls is supported on ASC0/Mux1 only.
• If

<n>

is set to higher values, the calling party may hang up before the call is automatically answered.

• The correlation between

ATS7

and

ATS0

is important.

Example: Call setup may fail if ATS7=30 and ATS0=20.

• Setting is local to the interface. It is allowed to have different settings on different interfaces. In such cases

the interface 'wins', which is idle and uses the smallest

<n>

value.

• The ATS0 write command is PIN protected.
• According to

"3GPP TS 27.007 (GSM 07.07): AT command set for User Equipment (UE)"

,

ATS0

is also used

as GPRS compatibility command to answer automatically to a network request for PDP context activation

(see Section

11.21

). Therefore, when the

ATS0

write command is issued with

<n>

greater than 0, the ME will

attempt to perform a GPRS attach if not yet attached and if configured to do so (due to the setting

AT^SCFG

="GPRS/ATS0/withAttach","on").

If the automatic GPRS attach fails the ME keeps trying to attach for approx. 5 minutes, before

ATS0

ends up

with "ERROR" or "+CME ERROR: unknown", though the new

<n>

value takes effect. To avoid the risk of long

response times to

ATS0

in such case take care that the parameter

AT^SCFG

=

<gs0aa>

is off, if autoanswer

mode is not needed for GPRS or if the mobile works in non-GPRS networks.

The GPRS attach will not be performed on recalling a stored user profile with

ATZ

or on powerup, even though

a value

<n>

greater than 0 was stored in the user profile with

AT&W

.

Read Command

ATS0?

Response(s)

<n>

OK

ERROR

Write Command

ATS0=

<n>

Response(s)

OK

ERROR

Reference(s)

PIN

ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge

4

Last

V.250

±

+

+

+

+

+

+

-

-

-

<n>

(num)(&W)(&V)

Advertising