a2billing,callback,callshop,ani,device2phone,pc2phone, multilayer level reseller, active calls
I am now depolying one sytem, below is mysolution for him
5 x asterisk as call server
1 x DB +1 x A2Billing as billingserver
5 asterisk server share 1 billing server
one small question is callback ,since sms callback ,when web server received request,which asterisk server to trigger ?
but no problem,it's only simple and small question,we'll work around it
UPDATED: it now use 2 servers ,one main server do asterisk+BILLING DB,another server do asterisk
one day the main server has 600 about sip channels(sip show channels)
another main server not see,but normally >100 channels ,I think
the main server is 4 CPU,with 4G memory
it seems becoming unstable,but mysql,a2billing really running ok(you must didn't expect that),even mysql has 4 times more activities than normal a2billing because of reseller support, call monitor