4f55f5cb_ISDN_Cause_Codes__Cause_Usage
[Cause#] 7 [Fixit!] N/A [Cause Summary] Call awarded and being delivered in an established channel. [Cause Usage] 
Indicates that the user is receiving an incoming call, which is being connected to a channel already used by that user for similar calls (e.g., packet-mode X.25 virtual calls).
ISDN Cause Codes
Cause Usage