ATA 188 10 mbps only

Unanswered Question
rob.huffman Wed, 05/09/2007 - 10:21

Hi Jean-Sebastien,

It sounds like you might actually have an ATA 186. Have a look at this note;

Note: The Cisco ATA 188 performs auto-negotiation for duplexity and speed and is capable of 10/100 Mbps, full-duplex operation. ***The Cisco ATA 186 is fixed at 10 Mbps, half-duplex operation.

From this good ATA doc;

Hope this helps!


I solved this!!!

The release note should have been

the hardware version number on your Cisco ATA must be 0x0009 +

Like the release notes:

I set the pc port to value 4 i.e. 1111 and the uplink port bits the same. In hex the switchports parameter is 0x000000ff

You must power off then power on the ATA to change the speed/duplex. A shut/no shut on the port neither a restart device on callmanager is enough.

rob.huffman Wed, 05/09/2007 - 13:13

Hi Jean-Sebastien,

Thanks for posting back with your resolution,great troubleshooting here! 5 points from this end.

Thanks again,



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