I have used + E.164 numbers (+1416XXXX2XX) as my extensions in unity connection, I would like for callers to only dial 2xx when inside a greeting to be transferred to an extension. I can configure 2XX as alternate extension for all users to achieve this. Is there a better way? I tried messing around with call forwarding rules, but that did not work.
Alternate extension would work. You could also configure the call handler to prepend digits for dialed extensions (Call handler > Caller input > Check the box to enable Prepend Digits to Dialed Extension > enter the digits to prepend).
OK. I assumed the greeting you were referring to was a call handler greeting. The same setting applies to users. You can prepend digits to dialed extensions. Users > Edit > Caller Input > Prepend Digits to Dialed Extensions. You could use bulk administration to update all users with this setting.