I am planing to implement CER for more than 1000 IP phones but about 400 of them will be 7925. In order to be able to track the wireless phones I am going to have a different DHCP scope for each access point and then assign an ERL to the phones based upon the subnet. My question for you guys is what happens if the guy with wireless phone movers from one building to another? WIth this solution the IP address will be changed moving from one AP to another. WIll the user loss connection when the IP address changes?If so, is there a work around for this issue?
So, in reality, Emergency Responder is a no-go with 802.11-based voice deployments in my opinion. The only product I am aware of that does work is 911 Enable. It scans the WLC to see which BSSID the phones' MAC addresses are associated to every few minutes to determine which AP the phone is currently associated to. 911 Enable is a competitor/replacement for Emergency Responder, not a suppliment to it. http://911enable.com
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...