a question about FXS and FXO attendant DN

[baselzind]

im setting up a MGCP with FXS and FXO , im confused about the  attendant DN , with FXO when i set the attendant DN number , it means this is the extension on cucm any incoming calls on that FXO will ring , but with FXS what does attendant DN do? what happens when u put a certain number there?

[Brandon Buffin]

Attendant DN is not applicable to FXS ports. Not sure what version of CUCM you are running. There was a bug for attendant DN showing up for MGCP GS/LS config. If you add as POTS port instead of GroundStart/LoopStart the problem is not present. See the bug below.

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCtf22348/?rfs=iqvred

Brandon

[baselzind]

my version is 12.5 , im very confused , should i leave it empty?

[Brandon Buffin]

Yes, leave it blank.