Simultaneous Monitoring

You can monitor multiple channels simultaneously, and you can monitor multiple web chat interactions simultaneously, but you cannot monitor more than one interaction of other channels simultaneously. For example, you can monitor one or more web chat interactions and an instant messaging interaction simultaneously, but not two instant messaging interactions.

Voice and IM Monitoring

You can simultaneously monitor a SIP voice interaction and an instant messaging session if both you and the agent are assigned separate SIP voice and instant messaging DNs.

If the agent has only a single SIP channel to handle both voice and instant messaging, then you can monitor that channel, but you cannot specify to monitor only voice or only instant messaging.