I was trying to make one of my extn (8100) to return BUSY (486) to a DID call on SIPT but failed.
Here is my situation:
3 internal extns (8100, 8101, 8122), one external softphone connecting using SIPT.
I am setting up 8100 to use Call Rerouting #3 (for Day/Night1/Night2/1st Alt/2nd Alt) and CRAA and CRFA for #3 have all default values (no reroute in CRAA and all NORMAL in CRFA). That takes VM out of equation.
* 8100 calls 8101, in conversation
* 8122 calls 8100, gets BUSY (correct)
* outside sip phone calls 8100 (thru SIPT), gets 180 Ringing and Call Waiting shows up on 8100
Tried to disable call waiting on 8100 but can't get it to work (8100 is a MINET phone, I tried Force Device Busy if Any Line is in Used in COS ).
I could do a BUSY EXTENSION 8100 thru maintenance command to manually BUSY it but I still won't get 486 from outside (will get a 480 Temp Not Available)
Looks like it treats DID calls and INT calls differently but the Call Rerouting entries are provisioned the same way.
Thanks