Datasheet

Data Sheet
© 2011 Cisco and/or its affiliates. All rights reserved. This document is Cisco Public Information. Page 2 of 4
Feature Benefit
Buttons The phone has the following buttons:
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Select, Back, and Two-Way Navigation
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Redial, Transfer, and Hold/Resume
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Standard dial pad
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Mute, Volume Up/Down, and Speakerphone
Firmware
Signaling protocol Session Initiation Protocol (SIP) is supported.
Call features
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Adjustable volume levels
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Auto barge
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Call forward
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Call pickup
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Call waiting
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Call transfer
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Conference
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Forced Authorization Codes (FAC)
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Group call pickup
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Message-waiting indicator
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Music on hold
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Private-line automatic ringdown (PLAR)
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Redial
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Shared line
Audio codec support G.711a, G.711µ, G.729, G.729a, and G.729b.
Voice quality Comfort-noise generation (CNG) and voice-activity-detection (VAD) programming is provided on a system basis.
Configuration options
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Dynamic Host Configuration Protocol (DHCP) client or static configuration
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Support for online firmware upgrades using Trivial File Transfer Protocol (TFTP)
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Domain Name System (DNS)
Provisioning and
manufacturing
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Web server for configuration and statistics
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Real-Time Control Protocol (RTCP) support and monitoring
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Syslog
Cisco Unified Communications Manager Support
The Cisco Unified SIP Phone 3905 is supported on the Cisco Unified Communications Manager Version 7.1(5) or
later, the Cisco Unified Communications Manager Business Edition 3000 Version 8.6, the Cisco Unified
Communications Manager Business Edition 5000 Version 8.5 or later, and the Cisco Unified Communications
Manager Business Edition 6000 Version 8.5 or later.
Licensing
Phone licensing depends on the call-control platform and its policies. For the Cisco Unified Communications
Manager, the Cisco Unified SIP Phone 3905 requires appropriate User Connect Licensing (UCL). There are no
special license-plus-phone bundles for tier 2 distributors. The phone is not supported on third-party call-control
systems.
Product Specifications
Table 2 lists the specifications of the Cisco Unified SIP Phone 3905.
Table 2. Product Specifications
Protocols SIP
Connectivity 10/100BASE-T wired Ethernet LAN port plus switched PC port.
Memory
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4-MB flash memory
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32-MB synchronous dynamic RAM (SDRAM)