Can you attach a microphone? I already have a headset attached, but need a microphone input as well.

Hello Destry, Please refer to the link below. Look at the section where stated Analog headset and AUX port. https://www.amazon.com/ask/question/Tx1TDO4JNWOFJTG?_encoding=UTF8&authToken=ed48dd98-5a59-466c-9ea2-63c30b42ead0&refTag=ask_al_asp_hza I hope this would help. thank you, andy

My company is changing phone system and i would like to know if these phones are supported by at&t fiber optic. do we need any other service?

Hello, sorry this answer is going to be quite long. These phones typically require a Cisco Unified Communications Manager (CUCM) server (can be virtualized) or Cisco Unified Communications Manager Express installed a Cisco Router. For the actual phone lines: You will either need to have POTS lines or a PRI connected to a Cisco Router which point to the CUCM server, or you may connect the UCM server to virtual phone lines through the internet (SIP), which will run over your AT&T Fiber Optic. You may also need to purchase additional licensing. If you don't have the CUCM in place yet, we recommend doing research on Cisco's website or reaching out to vendor to help configure/install the server. Hope that helps!

RAM	1
Product Dimensions	40.64 x 7.62 x 27.94 cm; 1.81 kg
Batteries	Product Specific batteries required.
Item model number	CP-8841-K9=
Connectivity technologies	wired
Call conference	basic
Other display features	Wireless
Colour	black
Manufacturer	CISCO SYSTEMS - ENTERPRISE
Item Weight	1 kg 810 g

8841 VoIP Phone

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