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- DTMF handsfree echo problem - VVX500
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07-24-2017 07:41 AM
When joining conference calls using the handsfree function, I can't seen to enter keypress (DMTF codes) to join conference calls. The phone seems to "hear" each keypress sending the wrong code into the call. Only by pressing the MUTE BUTTON does the phone properly interpret the numbers being pressed.
is there a configuration value to address this?
Sincerely,
Keith
VVX500
UC 5.5.1
Solved! Go to Solution.
Accepted Solutions
07-24-2017 11:13 AM
Might one of these config paramaters be coming into play:
tone.dtmf.chassis.masking1 0 or 1 0
If 0, DTMF tones play through the speakerphone in handsfree mode. If 1 (set only if tone.dtmf.viaRtp is set to
0), DTMF tones are substituted with non-DTMF pacifier tones when dialing in handsfree mode—this is to prevent the
tones from broadcasting to surrounding telephony devices or being inadvertently transmitted in-band due to local
acoustic echo.
voice.aec.hf.enable 0 or 1 1
Enable or disable the handsfree AEC function. Note: Polycom recommends that you do not disable this parameter.
07-24-2017 11:13 AM
Might one of these config paramaters be coming into play:
tone.dtmf.chassis.masking1 0 or 1 0
If 0, DTMF tones play through the speakerphone in handsfree mode. If 1 (set only if tone.dtmf.viaRtp is set to
0), DTMF tones are substituted with non-DTMF pacifier tones when dialing in handsfree mode—this is to prevent the
tones from broadcasting to surrounding telephony devices or being inadvertently transmitted in-band due to local
acoustic echo.
voice.aec.hf.enable 0 or 1 1
Enable or disable the handsfree AEC function. Note: Polycom recommends that you do not disable this parameter.
07-24-2017 12:44 PM
Hello KeithT,
A couple of your old posts => here <= are still open / pending as you have not marked these as "Accept as a solution" or at least provided some form of feedback or answer.
If they are in this state nobody finding them via a community search will know if an answer or advice provided was useful and has maybe helped you.
Could you therefore kindly go over them and mark or answer as appropriate ?
If they are marked as "Accept as a solution" other users can find these easier and it helps them to utilize the community more efficiently.
In addition UC Software 5.6.0 is the currently latest supported software so I suggest to test this first and also provide some feedback if this in an AVMCU call or some sort of third party conference service.
Best Regards
Steffen Baier
Notice: I am an HP Poly employee but all replies within the community are done as a volunteer outside of my day role. This community forum is not an official HP Poly support resource, thus responses from HP Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge.
If you need immediate and/or official assistance for former Poly\Plantronics\Polycom please open a service ticket through your support channels
For HP products please check HP Support.
Please also ensure you always check the General VoIP , Video Endpoint , UC Platform (Microsoft) , PSTN
07-24-2017 04:33 PM
Thanks Joe,
This turned out to be helpful. I should have stated in my original post that I had tried this setting. The problem? The documentation recommends setting tone.dtmf.viaRtp to 0. THAT was a mistake.
In short, setting tone.dtmg.chassis.masking to 1 resolves the issue. I still hear the tones in my headset. Ofcourse, that's ok.
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