Page 34 of 52
Fig.25 Incoming call
9.7 Active call
When a call is active, the base displays the active call, and the audio path is connected between the far-end
party and RTX725x headset (Fig.26). It is not possible to have more than one active call on a single line at the
same time.
Fig.26 Active call
9.8 On-hold call
When a call is put on-hold, the base displays a hold call status and the audio path is disconnected between
the far-end party and the RTX725x headset (Fig.27). It is not possible to set EHS active call on-hold by the
base.
Fig.27 Two calls, one on hold
9.9 Multiple calls
There is more than one call existing in a single line (Fig.28).
NOTE: EHS and DHSG lines do not support multiple call. That is because there is only one available path for
the audio track. If we are using for example DHSG line with a deskphone and there are multiple calls on the
deskphone, user has to toggle/control those via the deskphone interface. For more details on the EHS and
DHSG connections refer to 10.2 EHS interface and 15. Appendix C: EHS and DHSG API.