BlindXfer Sensitivity

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Asterisk Users 5 Comments

Hi Guys

We have a client running on a polycom vvx400 IP phone on our asterisk
1.8.18 system

The issue we have is the switchboard lady uses ## to transfer calls but sometimes it just does not work and just plays the DTMF tone to the calling party.

Is there any way to adjust the sensitivity of the blindxfer feature?

The polycom Transfer button is useless as there is a big delay until it apprears

I would greatly appreciate any advice

5 thoughts on - BlindXfer Sensitivity

  • It seems weird that this would be some kind of sensitivity to the DTMF
    tones. The first thing I would look for is on a call that she cannot blind transfer, check how the Dial command was used to reach her. Does it have the proper use of the tT options (depending on whether she called them or they called her)? I would almost bet there is a call path that occurs which doesn’t have the proper options set to allow the transfer.

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  • Are you sure it’s a DTMF sensitivity problem rather than a delay problem?

    I’ve had several sites where the default DTMF timeout of 0.5 seconds is too short for users to achieve, and have set featuredigittimeout (in features.conf) to 3 seconds to give them more time to press the combinations they need to press.

    Kind regards,

    Chris

  • RFC2833

    The strange thing is how asterisk is not registering she has pushed ## on those “Rare” occiasions”