I9 - Identify Plug and Play ID

Command Line Format
AT [cmds] I9 [cmds] <CR>

Description
The I9 command instructs the DCE to produce information text that consists of all the same characters the modem would deliver in a complete Plug and Play ID character string, except for the PNP revision, which will be a two-character decimal number.

The two byte PNP ID shall be converted back into version format, "n.nn"or "nn.nn", depending on the first number having one or two digits. The two byte checksum is omitted.

Example of ATI9 command and response:

ATI9<CR>

<CR><LF>

"(1.00HAY0849\\MODEM\\OPTIMA 288 V.34+FAX, 5306AM, V4.0 cs)"

<CR><LF>

<CR>t<LF>

OK

<CR><LF>

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