Setting AudioMixerState on SaviW740, but one interface is always Muted.

Hi,

I am using the COM API to communicate with a Savi W740, and I would like to use the IDeviceListener::put_AudioMixerState method to connect the Headset with the VOIP and PSTN interfaces simultaneously (using MuteState_All).

I can't tell if the mixer change has worked, because the Base Unit always seems to force One interface into a Hold state when the other is activated.

The following code is triggered (in a test app) when the user presses the PSTN button:

      VARIANT_BOOL lineActive;

      deviceListener->put_AudioMixerState(MuteState_All);

      deviceListener->Hold(LineType_VOIP, FALSE, &lineActive);

      Sleep(1000);

      deviceListener->Hold(LineType_PSTN, FALSE, &lineActive);

When the Hold(LineType_VOIP ...) runs, the PSTN interface is placed on hold.

When the Hold(LineType_PSTN ...) runs, then the VOIP interface is placed on hold.

Does the Savi 740 support the ability to have more than one interface active at a time?  Do I need to use a different command to activate both interfaces?

Thanks in advance.

-Paul Wysocki