[Freeswitch-users] 486 Busy Here with Reason: Q.850; cause=16; text="NORMAL_CLEARING"

[Yuriy Nasida]

Hi guys,
I see that my FS sends sip message "486 Busy Here" with Reason: Q.850; cause=16;text="NORMAL_CLEARING".  Why 16 and "NORMAL_CLEARING ? Probably it should be 17 "user busy". One of my carrier play a "fast busy" (number not available)  and blames Q.850 field. 
Any advice are welcome.Thanks. 		 	   		  
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