3CX and Sprint

Discussion in 'iOS' started by jwarrenr6, Apr 12, 2013.

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  1. jwarrenr6

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    has anyone had any issues using SIP over Sprint?

    My 3cx on my iphone 4S works fine over wifi, but does not register when connected to the Sprint 3G network

    Any ideas?

    James
     
  2. leejor

    leejor Well-Known Member

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    If you are using as an extension off the 3CX PBX, have you tried using the Tunnel option?

    I don't recall reading anything about Sprint blocking VoIP.
     
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