CME Expansion

[mhering8650]

Quick Q for the Guru's out there.

If I have a CME chassis that is maxed out with the number of ephones it can have (52 on a 2821 for example) and I needed to add more phones, couldn't i just add another Chassis with a different Extension range and have dial peers pointing to each other?

or am I stuck upgrading the chassis to a much larger (read more expensive) system?

Thanks

[don-sullivan · Accepted solution]

In short yes without upgrading the chassis. If using physical IP phones you'd have to manually set your TFTP server. If using softphones you have to set TFTP server anyway.

[Jesse Drohen]

If feasible, creating a different voice vlan with a different option 150 for the new phones you could point them to the second CME box so that you don't have to touch every phone.

[steven.wilson]

You can add another CME. It would need to be on another subnet and have a separate DHCP scope too. If you have QoS on the LAN, you will need to extend it to the new Voice LAN too.