Siemens Gigaset C450

Discussion in '3CX Phone System - General' started by elbatech, May 14, 2008.

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  1. elbatech

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    I have a system with 3cx PBX phones Grandstream B200 and cordless Gigaset C450 IP.
    I can not switch telephone calls from C450 to Grandstream.

    Can you help?
     
  2. otaku-oni

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    Transfers are a bit of hairy issue. Especially when every manufacturer seems to implement SIP behaviour as they will. Unfortunatley you seem to be running on devices that are not in the recomended list.

    First thing to do is update those firmwares. Especially on the B200. If the problem persists use the Verbose logging feature, the SIP conversation in the logs might shed some light on your problem.
     
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  3. archie

    archie Well-Known Member
    3CX Support

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    Otaku-oni is perfectly right. But still you can try "Bind to media server" and disabling "support re-invite" to improve the situation.
     
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