Unified Communications

The growing use of Wi-Fi Wi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. and the proliferation of mobile tablet and smartphone clients cause control and visibility challenges for communication and collaboration applications. To overcome these challenges, Aruba offers the Unified Communications (UCC Unified Communications and Collaboration. UCC is a term used to describe the integration of various communications methods with collaboration tools such as virtual whiteboards, real-time audio and video conferencing, and enhanced call control capabilities.) application to manage enterprise communication ecosystem.

Unified Communications does not access points running AOS versions lower than 8.10 or

Unified Communications provides a seamless user experience when using communication and collaboration tools. The Unified Communications application actively monitors voice, video, and application sharing sessions, provides traffic visibility, and allows you to prioritize the required sessions. The Unified Communications application also leverages the functions of the service engine on the cloud platform and provides rich visual metrics for analytical purposes.

The Unified Communications application supports the following functions based on the type of device used in the solution:

  • Session visibility—The Unified Communications application provides call session visibility correlated across the network to simplify operations for the network administrator. The administrators can monitor wireless and wired network connectivity health on a per-session basis and analyze the quality of experience.
  • Session prioritization—Aruba Central receives call control information from the APs. The Unified Communications application uses this data to detect and classify the traffic type. Unified Communications dynamically prioritizes the voice and video traffic over data traffic. Unified Communications uses the heuristics method for session prioritization. A built-in heuristics engine detects and prioritizes the required traffic. Unified Communications uses the heuristics data detection to identify the clients in a call. Unified Communications uses the heuristics data classification method to classify and prioritize the media packets.

When Aruba Central is not reachable, the APs apply default prioritization to the new calls and do not provide dashboard visibility for the new calls. Unified Communications-defined call prioritization is applied to in-flight calls.


Aruba Central licensing is applicable to Unified Communications applications. Unified Communications is available with Advanced AP licenses.

Heuristics Classification

For heuristics classifications, the APs perform deep packet inspection on the traffic and determine the traffic type. The order of heuristics classifications is detection, prioritization, and visualization. The heuristics classification method includes the following steps:

Unified Communications opens the specific ports and sends the packets for processing. The following table lists the port information.

Table 1: Unified Communications Ports

ALG Application Layer Gateway. ALG is a security component that manages application layer protocols such as SIP, FTP and so on. Protocol Port Protocol


TCP Transmission Control Protocol. TCP is a communication protocol that defines the standards for establishing and maintaining network connection for applications to exchange data.






SIP Session Initiation Protocol. SIP is used for signaling and controlling multimedia communication session such as voice and video calls.





Unified Communications only adjusts the DSCP Differentiated Services Code Point. DSCP is a 6-bit packet header value used for traffic classification and priority assignment. or QoS Quality of Service. It refers to the capability of a network to provide better service and performance to a specific network traffic over various technologies. for the session and provides visibility if the user-role of the client permits the traffic. If a user-roles denies the traffic, Unified Communications does not perform heuristics for that session and sets the D flag.

  • Unified Communications classifies RTP, Skype for Business, Teams, Wi-Fi Calling, and Zoom calls using heuristics-based classification.
  • Unified Communications classifies SIP calls using signalling-based classification.

Monitoring Unified Communications

Monitor Unified Communications in the summary and list views:

Unified Communications Configuration

To configure Unified Communications, see Unified Communications Configuration.