Just replaced a Bizfone System and customer handles calls for 3 companys. When a call comes in they need to be able to identify which line it came in on so they say the correct greeting...any ideas.
Please notice that my previous comment applies to Call Blast groups using the new "voice hunt-group" CLI. Regular ephone hunt-groups may still make use of the "service dnis dir-lookup" option described in the document I referenced earlier. Problem is that ephone hunt groups do not support parallel ringing.
One other approach that you can take is create directory entries for the different called number and the Company names (these would be the plar destination). You can do this using CLI today. Once you have the directory numbers created, ensure that "service dnis dir-lookup" is enabled under the telephony-services (should be enabled by default).
With the above, you should be able to see the Company name displayed on the IP Phone when a call comes in.
Here's some description in the CME Admin Guide: