Hello,My config :CUCM6-----------ISR2811------(sip)--------NAT+FW-------(sip)--------SIP ProviderISR2811 and NAT+FW are not the same equipment.ISR2811 : IP-to-IP feature, only one network interface + private ip address.NAT+FW : not a Cisco equipment....

Hello,Did somebody know how to change in CCM the message "Unknow Number" that display on ip phones on incoming calls that did not carry caller-ID (from analog gateway for example) ? I would like to display text (ex:"Internal Call").In CCM2.4 I used t...