Cisco SPA502 Administration Guide - Page 162
Updating Profiles and Firmware, Cisco Small Business IP Telephony Devices Provisioning Guide
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Provisioning Updating Profiles and Firmware 6 FXS_Port_Impedance "600" ; # options: 600/900/600+2.16uF/900+2.16uF/ 270+750||150nF/220+820||120nF/220+820||115nF/370+620||310nF FXS_Port_Input_Gain "-3" ; FXS_Port_Output_Gain "-3" ; DTMF_Playback_Level "-16" ; DTMF_Playback_Length ".1" ; Detect_ABCD "Yes" ; Playback_ABCD "Yes" ; Caller_ID_Method "Bellcore(N.Amer,China)" ; # options: Bellcore(N.Amer,China)/DTMF(Finland,Sweden)/DTMF(Denmark)/ETSI DTMF/ETSI DTMF With PR/ETSI DTMF After Ring/ETSI FSK/ETSI FSK With PR(UK) FXS_Port_Power_Limit "3" ; # options: 1/2/3/4/5/6/7/8 Protect_IVR_FactoryReset "No" ; Updating Profiles and Firmware Cisco IP phones support secure remote provisioning (configuration) and firmware upgrades. An unprovisioned Cisco IP phone can receive an encrypted profile specifically targeted for that device without requiring an explicit key by using a secure first-time provisioning mechanism using SSL functionality. User intervention is not required to initiate or complete a profile update or firmware upgrade. If intermediate upgrades are required to reach a future upgrade state from an older release, the Cisco IP phone upgrade logic is capable of automating multi-stage upgrades. A profile resync is only attempted when the Cisco IP phone is idle, because this might trigger a software reboot and disconnect a call. General purpose parameters manage the provisioning process. Each Cisco IP phone can be configured to periodically contact a normal provisioning server (NPS). Communication with the NPS does not require the use of a secure protocol because the updated profile is encrypted by a shared secret key. The NPS can be a standard TFTP, HTTP or HTTPS server with client certificates. The administrator can upgrade, reboot, restart, or resync Cisco IP phones by using the phone web user interface. The administrator can also perform these tasks by using a SIP notify message. Configuration profiles are generated by using common, open-source tools that integrate with service provider provisioning systems. (Provisioning is described in detail in the Cisco Small Business IP Telephony Devices Provisioning Guide.) Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 161
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