Aastra 675xi 6730i, 6731i, 6751i, 6753i, 6755i, 6757i IP Phones, M670i, M675i Key Extension User Guide

Below you will find brief information for IP Phones 675xi 6757i, IP Phones 675xi 6755i, IP Phones 675xi 6753i, IP Phones 675xi 6751i, IP Phones 675xi 6731i, IP Phones 675xi 6730i. This guide describes how to use an Aastra 673xi/675xi SIP telephone which is connected to the OpenCom 100/Aastra 800 communications system. You can make a call in the handsfree mode, e.g. to let anyone present in the room listen in. During a call you can briefly interrupt an ongoing call by using the Hold key; the person calling now hears music on hold. You can save call numbers either to the function keys or to the number keys of your telephone as speed dialling destination. The administrator of the OpenCom 100/Aastra 800 communications system can configure “Missed calls” or “Accepted calls” function keys.

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Aastra 675xi 6757i, 6755i, 6753i, 6751i, 6731i, 6730i User Guide | Manualzz

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Key features

  • Handsfree mode

  • Hold key

  • Speed dialling

  • Caller lists

  • Phone book

  • Call forwarding

  • Voice box

  • Messenger

  • Hot desking

Frequently asked questions

During a call press the Mute key. The microphone is switched off. The red LED indicator next to the key blinks and your caller can no longer hear you. Press the Mute key once again to switch the microphone back on.

Press an unassigned trunk key (e.g. trunk key 2 on the Aastra 6751i). You hear the internal dialling tone. The person calling is put on hold and now hears music on hold. Now dial the call number of the caller desired and make the enquiry call. Press the Goodbye key to terminate the enquiry call.

You can adjust the volume of the ringer, of the handset or of the speaker with the Volume keys.

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