Hello everyone:

using chan_capi 0.7 and asterisk 1.4

Quick question:
How can I detect the number of "voice" channels (B channels) in use at a given time. I'd like to call "Busy" if two B channels are used on my BRI to give the calling customer a Busy signal.

Long question:
On my single-line BRI (two channels) I'd like to give the 3rd simultaneous incoming call an busy signal. I already tested and the Busy function works very well (I've set up one of my MSN's to immediately call Busy). I also tested and I'm 100% sure the 3rd call makes it into the box while the other 2 channels are talking, so this is not a Telco problem and it can be "fixed" locally. Doing this on my side of the line (as opposed to having the Telco issue the Busy signal on my behalf) has an number of benefits: (a) I don't need to talk to the Telco (b) I *know* who called and I can call them back and (c) In a distant future I might use the capi channel's ability to transfer the call to a different POTS line since this doesn't use the B channel.

Thanks,
Cosmin Prund
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