[Asterisk-Users] Max Retries Exceeded - IAX2. Network problem?

[Paul Redstone]

Hi

We're having some problems with max retries exceeded errors using IAX2 which 
causes dropped calls. Sometimes happens with Firefly softphone, now 1.9.9 (the 
current one) but has also happened with a hardphone we use (IAXtel). This is 
just for the internal connection between our desktops and our switch - these 
are calls which then go out ver ISDN/PSTN and the error is definitely an iax 
channel error, which means internal.

So my guess is now that this is due to either a problem with network 
connectivity - our switch or with the network card in the Asterisk server. 
There is some suggestion it happens when the network is busy.

Can anyone suggest a way of checking this out? I think I'm going to buy a 
different switch type and see if ti has an effect but a more systematic way 
would be better.

Thanks

Paul