Sounds like you may have a user rights issue. Does the user have user rights configured? Do they match on both the Pri and the Exp?

Do all your handsets register to the Primary?

What does it show in SSA or Sysmon when you try to make a call?

we dont have a user rights configured

Do all your handsets register to the Primary?

What does it show in SSA or Sysmon when you try to make a call?

we'll get back to you lackey, just want to give you a few details.

All extensions is configured in Primary except for the Conference phone which having hard time to make an outbound call and place temporarily in expansion.

All of the H323 Phones and J139Phones can make an outbound call with authcode

All of our ARS and authcode is programmed in Expansion

The ARS defined in Primary is ?/./dial/99997 <- Line to Expansion

The shortcode used in Primary is 9N/./50:Main

Compare the Monitor logs of a successfull call with the unseccessfull call from B179

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CLI based cale blocking: https://blog.fwilke.com/ip-office-block-calls-from...
SCN fallback over PSTN: https://blog.fwilke.com/ip-office-scn-fallback/

we can call NDD but not in IDD like cellphone numbers.

in our h323 phones and J139 Phones we can make a NDD IDD Calls.

Here's the unsuccessful call using IDD
8/14/19 5:43:08 AM-805ms Line = 2, Channel = 1, Line Ref = 1868, Q.931 Message = Setup, Call Ref = 250, Direction = From Switch, Calling Party Number = 216, Called Party Number = 909064251734
8/14/19 5:43:08 AM-825ms Line = 2, Channel = 1, Q.931 Message = CallProceeding, Call Ref = 250, Direction = To Switch
8/14/19 5:43:08 AM-865ms Line = 2, Channel = 1, Q.931 Message = Progress, Call Ref = 250, Direction = To Switch
8/14/19 5:43:28 AM-902ms Line = 2, Channel = 1, Q.931 Message = Progress, Call Ref = 250, Direction = To Switch
8/14/19 5:43:30 AM-833ms Extension = 216, State = Busy Wrap Up
8/14/19 5:43:32 AM-836ms Extension = 216, State = Idle

Here's the successful call using local and NDD
8/14/19 5:45:34 AM-844ms Line = 2, Channel = 1, Line Ref = 1872, Q.931 Message = Setup, Call Ref = 251, Direction = From Switch, Calling Party Number = 216, Called Party Number = 98568888
8/14/19 5:45:34 AM-863ms Line = 2, Channel = 1, Q.931 Message = CallProceeding, Call Ref = 251, Direction = To Switch
8/14/19 5:45:36 AM-000ms Line = 2, Channel = 1, Q.931 Message = Alerting, Call Ref = 251, Direction = To Switch
8/14/19 5:45:37 AM-503ms Line = 2, Channel = 1, Q.931 Message = Connect, Call Ref = 251, Direction = To Switch
8/14/19 5:45:49 AM-313ms Extension = 216, Digit dialed, Digit = 1
8/14/19 5:46:16 AM-952ms Extension = 216, State = Busy Wrap Up
8/14/19 5:46:18 AM-953ms Extension = 216, State = Idle