Simultaneous call limitation
It is possible to limit simultaneous calls per provider/did/user/device basis.
These settings limits simultaneous calls, not how many total calls user/device/provider(/did) can make!
When no more calls can be made - dialer hears BUSY signal (Starting from MOR 0.8).
Provider
Call limit - describes how many simultaneous calls Provider can make. 0 (zero) means that calls are unlimited.
Hangupcause code 223 means that Provider can't make more simultaneous calls.
This limit is for outgoing calls through this Provider.
User
Call limit - describes how many simultaneous calls User can make. 0 (zero) means that calls are unlimited.
Hangupcause code 220 means that User can't make more simultaneous calls.
Hangupcause code 222 means that Reseller (as a user) can't handle (allow to his users to make) more simultaneous calls.
This limit is for outgoing calls made by this User.
Device
Call limit - describes how many simultaneous calls Device can make. 0 (zero) means that calls are unlimited.
Hangupcause code 221 means that Device can't make more simultaneous calls.
This limit is for outgoing calls made by this Device.
DID
Call limit - describes how many simultaneous calls DID can receive. 0 (zero) means that calls are unlimited.
Hangupcause code 219 means that DID can't receive more simultaneous calls.
This limit is for incoming calls made to this DID.
Special case
(Starting from MOR 0.8)
When DID points to Device and limit is reached, call will be routed to this device BUSY - Call Flow.
E.g. it is used to ring other device or send call to VoiceMail when main Device has call.