The Enable PCM Upstream command is changed to AT+PIG=0.In earlier firmware versions this command ( AT+PIG=1 ) enabled PCM upstream. This was changed to conform with the specification.
Command: +PIG=n PCM Upstream Enable
Values: n = 0 or 1
Description: Controls the use of PCM upstream during V.92 operation. PCM upstream allows faster upload speeds to a V.92 server.
+PIG=0 Enable PCM upstream
+PIG=1 Disable PCM upstream
+PIG=? Displays the allowed values
+PIG? Displays the currrent value
This command was changed in firmware version 1.32C or greater and can be downloaded from our Web site at: