Which devices support features like call hold and call park?

The option that indicates supported IP phones and digital phone devices is correct because these types of devices are designed to work with advanced telephony features like call hold and call park. IP phones leverage VoIP (Voice over Internet Protocol) technology that enables more sophisticated call handling capabilities compared to traditional analog phones.

Digital devices also support features that enable users to manage their calls more effectively, such as placing calls on hold, transferring calls, or parking calls for retrieval by another user. These functionalities are integral to modern business communications, allowing for seamless multitasking and efficient call routing.

In contrast, analog phones typically lack the infrastructure and capabilities to accommodate these advanced features, as they are designed primarily for basic voice communication. Mobile devices, while capable of handling calls, may not inherently support office-specific features without additional software or applications that facilitate such functionalities. Lastly, not all landline phones can support these features, as traditional PBX systems and analog lines often do not provide the capabilities required for call management that IP and digital devices offer.