[COLUG] Cingular aircard operation problem

[Pat Collins]

On Wed, 25 Apr 2007 11:09:28 -0400, charles morrison <charlie2 at ledgible.com>
wrote :

> My son and I have Cingular Sierra 875 aircards. He uses Windows and I 
> use Kubuntu. The problem we have is that the aircards seem to disconnect 
> during a session.
> 
> The Cingular network can get as high as 1.5 Mbit rate when it works. 
> When it doesn't, you get slower than dialup. This is in a 3G network 
> area, Columbus. This has been a problem for me and my son.
> 
> My son has found that if he drops to a command prompt and issues a 
> continuous ping (under Windows), the connection is maintained and he 
> gets very good speed. This indicates to us that the Cingular network 
> disconnects us in a very short period of inactivity. We would both like 
> some ideas on how to maintain the Cingular connection, he, using windows 
> and I, using Kubuntu, which will not keep the network busy with pings, 
> but keep the connection alive so the card is usable.
> 

I think that you need to look at lcp-echo-failure and lcp-echo-interval
options in your ppp configuration file.   

Pat