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Brian E. Cauchi
08/01/05 05:48
Read: 1692 times


 
#98572 - Embedded modems & guard tone...
Hi all.
Slightly off-topic, but I'm sure some of the veterans here can help me.

What purpose does the guard tone (1800Hz or 550Hz) sent by a v.22bis modem serve? Does it have anything to do with disabling echo cancellers?

Any comments appreciated.

Best regards,
Brian E. Cauchi



List of 4 messages in thread
TopicAuthorDate
Embedded modems & guard tone...      Brian E. Cauchi      08/01/05 05:48      
   calling tones control echo cancellers      Dustin Stahlback      08/12/05 07:50      
   calling tones control echo cancellers      Dustin Stahlback      08/12/05 07:51      
   Ooops      Dustin Stahlback      08/12/05 08:22      

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