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  1. #1
    Registered User
    Join Date
    Feb 2004

    SIP Client & Out of Band DTMF?


    Does anyone know if the SIP client on Nokia ESeries devices (E51 & E75) support out of band DTMF (RFC 2833)?

    I was looking through the Nokia S60 VoIP release notes and was unable to find an answer for this. Could someone please advise?

    Thanks in advance!

  2. #2
    Super Contributor
    Join Date
    Mar 2004

    Re: SIP Client & Out of Band DTMF?

    Atleast on the E51 it does seem to work, check this link where someone has got it working :-


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