AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN - Manual (Page 262)

41-001343-01 Rev 03, Release 3.2.2 4-99
9 The “Silence Suppression” field is enabled by default. Disable this field by unchecking the check
box.
When enabled, the phone negotiates whether or not to use silence suppression. Disabling this
feature forces the phone to ignore any negotiated value.
10 Click to save your changes.
Aastra Web UI
Step Action