Provisioning multiple ip phones for single extension number

Discussion in '3CX Phone System - General' started by Pat T, Sep 12, 2017.

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  1. Pat T

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    hi all,

    is there anyway to get this done? tried adding same model grandstream phone to the same extension, using direct SIP provisioning method. somehow, only 1 of the phone will ring and not all at the same time.

    due to some legacy numbers in the office, i'm not able to assign new extension numbers to each and every of the phones. would require multiple phones to ring together at different parts of the building when a call comes in.

    ring group won't be able to work as outgoing calls required to be the same extension number as well.
    am on 3cx ver. 15.5.1694.0
     
  2. eddv123

    eddv123 Well-Known Member

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    Hi Pat T,

    I don't use Grandstreams however a couple of points to note here:
    There is another post today that has uploaded templates for un-supported models - it may assist:
    https://www.3cx.com/community/threads/grandstream-supported-phones.50807/

    Also the process has been documented, however the guide is a bit outdated (v14) but may help you understand the process a little better:
    https://www.3cx.com/docs/configure-multiple-ip-phones/

    Personally though I would always go with a supported/preferred model of phone (Yealinks are my preference) to avoid any headaches.
     
    YiannisH_3CX likes this.
  3. Pat T

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    hi there,

    am using gxp 1628, all the extensions in my environment are provisioned using Direct SIP/STUN since day 1 and working fine. but when i add additional phone to the extension, only the latest added phone will ring...
     
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