CP6851MPP (Multiplatform) VoIP SIP telephone kit includes CP-6851-3PCC-K9 and AC Power supply CP-6800-PWR-NA, support for up to 1 x expansion module (sidecar / attendant console), Note: Not for use with Cisco Unified Communications Manager. Equivalent to CP-6851-3PW-NA-K9.
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Yealink SIP-T57W
Reference: SIP-T57W
Prime Business Phone to Deliver Optimum Desktop Productivity
Especially designed for busy executives and professionals, Yealink SIP-T57W is an easy-to-use Prime Business Phone with an adjustable 7-inch multi-point touch screen that you can not only easily and flexibly find the comfortable viewing angle according to the personal and environmental needs, but also get a rich visual presentation and easy navigation with just one-touch. With the built-in Bluetooth 4.2 and the built-in dual band 2.4G/5G Wi-Fi, the SIP-T57W IP Phone ensures you to keep up with the modern wireless technology and take the first chance in the future wireless age. Its built-in USB 2.0 port allows for USB recording or a direct wired/wireless USB headset or up to three Yealink EXP50 expansion modules connection.

Prime Business Phone to Deliver Optimum Desktop Productivity
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No returns on opened items.
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Prime Business Phone to Deliver Optimum Desktop Productivity Especially designed for busy executives and professionals.