Intercom Does Not Activate Relay Using DTMF from Cisco/Linksys SPA Series Phones
am using Cisco/Linksys SPA series deskphones. The CyberData intercom
does not recognize the DTMF tones from these phones to unlock the door.
CyberData devices may detect more than one digit press when the ‘Mark
All AVT Packets’ is set to Yes on Cisco/Linksys SPA series phones.
This can result in a relay activation code failure because the detected
code does not match the configured code.
To resolve this issue, set ‘Mark All AVT Packets’ to No on the Cisco/Linksys SPA series phone.
Attached are sample configuration screenshots of Cisco/Linksys SPA942
and 504G model phones where the feature ‘Mark All AVT Packets’ has been
set to No.
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