Cisco Unified Wireless IP Phone 7925G Series Deployment Guide 22
• Signaling authentication
• Secure Cisco Unified SRST
• Media encryption (SRTP)
• Signaling encryption (TLS)
• Certificate authority proxy function (CAPF)
• Secure profiles
• Encrypted configuration files
• Settings Access (can limit user access to configuration menus)
• Locked network profiles
• Administrator password
Power Management
The Cisco Unified Wireless IP Phone 7925G Series has an option for a standard or extended battery.
The standard battery can provide up to 180 hours standby time or up to 9.5 hours talk time.
The extended battery can provide up to 240 hours standby time or up to 13 hours talk time.
When the access point supports the Cisco Client Extensions (CCX) proxy ARP information element, the idle battery life will be
optimized.
When on call U-APSD, PS-POLL, or active mode can be utilized depending on the Cisco Unified Wireless IP Phone 7925G
Series and Access Point configuration.
To extend on call battery life, the Cisco Unified Wireless IP Phone 7925G Series can use U-APSD or PS-POLL power save
methods.
The Cisco Unified Wireless IP Phone 7925G Series will use either U-APSD or PS-POLL when in idle (no active phone call).
There can be up to 40-50% reduction of battery life when on call and using Coexistence (802.11b/g + Bluetooth).
The table below lists the maximum on call and idle times for each 802.11 mode and battery type.
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