Cisco 521SG Administration Guide - Page 156
Redundant Provisioning Servers, Retail Provisioning
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Provisioning Redundant Provisioning Servers 6 Additional information is available in: • Cisco SPA3xx, SPA50xG, and SPA525G SPC Templates for Configuration Files, available on the Cisco Support Community at: https://supportforums.cisco.com/docs/DOC-10008 • Cisco SPA9000 Administration Guide Redundant Provisioning Servers The provisioning server may be specified as an IP address or as a fully qualified domain name (FQDN). The use of a FQDN facilitates the deployment of redundant provisioning servers. When the provisioning server is identified through a FQDN, the Cisco IP phone attempts to resolve the FQDN to an IP address through DNS. Only DNS A-records are supported for provisioning; DNS SRV address resolution is not available for provisioning. The Cisco IP phone continues to process Arecords until the first server responds. If no server associated with the A-records responds, the Cisco IP phone logs an error to the syslog server. Retail Provisioning The Cisco IP phone includes the web-based phone web user interface that displays internal configuration and accepts new configuration parameter values. The server also accepts a special URL command syntax for performing remote profile resync and firmware upgrade operations. In a retail distribution model, a customer purchases a Cisco voice endpoint device, and subsequently subscribes to a particular service. The customer first signs on to the service and establishes a VoIP account, possibly through an online portal. Subsequently, the customer binds the particular device to the assigned service account. To do so, the unprovisioned Cisco IP phone is instructed to resync with a specific provisioning server through a resync URL command. The URL command typically includes an account PIN number or alphanumeric code to associate the device with the new account. In the following example, a device at the DHCP-assigned IP address 192.168.1.102 is instructed to provision itself to the SuperVoIP service: Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 155