> 3.5 | ATS18 Extended call release report

> ATS18 controls the presentation of extended call release reports for circuit switched fax and data calls. Extended call release reports related to voice calls are controlled via AT+CEER.
> The call release report is presented in numeric format and shows as follows:

> +CAUSE: <locationID>:<reason>

> If enabled the message will be reported every time a fax or data call is released or fails to be established.
> Syntax

> Read Command ATS18?
> Response(s)
> <n>
> OK

> Write Command ATS18=<n>
> Response(s)
> OK
> ERROR

> Reference(s) |  | PIN |  | ASC0 | ASC1 | USB | MUX1 | MUX2 | MUX3 |  |  | Charge | Q | Last
> V.250 |  | - |  | + | - | + | + | - | - |  |  | - | + | -

> Parameter Description

> <n>(num)(&W)(&V)

> An odd number enables the presentation of the extended call release report. Any even number disables this feature.
> 0(&F)...255

> <locationID>(num)

> Location ID as number code, see also <locationID> of AT+CEER.
> Location IDs are listed in Section 3.4.1, Cause Location ID for the extended error report. Each ID is related to another table that contains a list of <reason>s.

> <reason>(num)

> Reason for last call release as number code (see also <reason> of AT+CEER).
> <reason> numbers and the associated descriptions are listed in several tables, sorted by different categories at AT+CEER. The tables can be found proceeding from the Location IDs listed in Section 3.4.1, Cause Location ID for the extended error report.
> Examples

> EXAMPLE 1 |

> ATS18=1 | Enables the presentation of extended call release reports.
> OK
> ATD03012345678 | Now, a mobile originated data call fails.
> +CAUSE: 8:17 | An extended error report is output, followed by the result code BUSY.
> BUSY | The Location ID 8 stated in Section 3.4.1 points to Section 3.4.7, with 17 = "User busy".

> EXAMPLE 2 |

> ATS18=1 | Enables the presentation of extended call release reports.
> OK
> ATD03012345678 | Now, a mobile originated data call is set up.
> CONNECT 9600/RLP
> Hello,....
> +++ | Call ends after remote party hung up.
> +CAUSE: 8:16 | Normal call release is reported, followed by the result code NO CARRIER.
> NO CARRIER | The Location ID 8 stated in Section 3.4.1 points to Section 3.4.7, with 16 = "Normal call clearing".