Yealink phones - DTMF

[expatel]

Had to go into yealink phones and change dtmf to rfc2833+sip info in order to get phones to put out dtmf recognized on outbound calls. Once this was changed, everything works except the "*" dtmf. Customer has a client whose autoattendant asks them to dial * for their directory. Does not work. I can dial it from my cell phone and * works. All other dtmf options work, just not *.

 

[FS_Mathieu]

Hello @expatel !

Could you provide us the following infos :

• 3CX Version
• Server OS
• Is the 3CX Server Hosted and where ?
• IP Phone Make/Model/Firmware
• Provisioning Method: Local / VPN / STUN / SBC
• Trunk Provider or Gateway Make/Model
• Has the Firewall Checker passed: YES / NO
• Are custom Phone Templates being used: YES / NO

Where did you change the setting ?

 

[JohnS_3CX]

Hi @expatel

This may be a restriction on your SIP provider. Are you using a supported provider?

As above, posting more information will help to understand your case
https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/