Binary Floor Control Protocol (BFCP)

BFCP allows users to share a presentation within an ongoing video conversation.

BFCP is automatically enabled.

Bluetooth

Bluetooth is a wireless personal area network (WPAN) protocol that specifies how devices communicate over short distances.

The devices support Bluetooth 3.0.

The devices support Hands-Free Profile (HFP), Advanced Audio Distribution (A2DP) Profile, Human Interface Device Profile (HID), Object Push Profile (OPP), and Phone Book Access Profile (PBAP).

Bootstrap Protocol (BootP)

BootP enables a network device to discover certain startup information, such as the IP address.

—

Cisco Discovery Protocol (CDP)

CDP is a device-discovery protocol that runs on all Cisco-manufactured equipment.

Using CDP, a device can advertise its existence to other devices and receive information about other devices in the network.

The device uses CDP to communicate information, such as auxiliary VLAN ID, per-port power management details, and Quality of Service (QoS) configuration information, with the Cisco Catalyst switch.

Cisco Peer-to-Peer Distribution Protocol (CPPDP)

CPPDP is a Cisco proprietary protocol that is used to form a peer-to-peer hierarchy of devices. This hierarchy is used to distribute firmware files from peer devices to their neighboring devices.

The Peer Firmware Sharing feature uses CPPDP.

Dynamic Host Configuration Protocol (DHCP)

DHCP dynamically allocates and assigns an IP address to network devices.

DHCP enables you to connect a device into the network and for that device to become operational without the need to manually assign an IP address or to configure additional network parameters.

DHCP is enabled by default. If it is disabled, you must manually configure the IP address, subnet mask, gateway, and a TFTP server on each device locally.

Cisco recommends that you use DHCP custom option 150. With this method, you configure the TFTP server IP address as the option value. For additional supported DHCP configurations, see the "Dynamic Host Configuration Protocol" chapter and the "CiscoTFTP" chapter in the Cisco Unified Communications Manager System Guide.

Hypertext Transfer Protocol (HTTP)

HTTP is the standard way of transferring information and moving documents across the Internet and the web.

Devices use HTTP for XML services and for troubleshooting purposes.

Hypertext Transfer Protocol Secure (HTTPS)

Hypertext Transfer Protocol Secure (HTTPS) is a combination of the Hypertext Transfer Protocol with the SSL/TLS protocol to provide encryption and secure identification of servers.

Web applications with both HTTP and HTTPS support have two URLs configured. Devices that support HTTPS choose the HTTPS URL.

IEEE 802.1X

The IEEE 802.1X standard defines a client-server-based access control and authentication protocol that restricts unauthorized clients from connecting to a LAN through publicly accessible ports.

Until the client is authenticated, 802.1X access control allows only Extensible Authentication Protocol over LAN (EAPOL) traffic through the port to which the client is connected. After authentication succeeds, normal traffic can pass through the port.

Devices implement the IEEE 802.1X standard by providing support for the following authentication methods: EAP-FAST and EAP-TLS.

When 802.1X authentication is enabled on the device, you should disable the PC port and voice VLAN.

IEEE 802.11a/b/g/n

The IEEE 802.11 standard specifies how devices communication over a wireless local area network (WLAN).

802.11a operates at the 5 GHz band, and 802.11b and 802.11g operate at the 2.4 GHz band.

802.11.n operates in either 2.4 GHz or 5Ghz band.

The 802.11 interface is a deployment option for cases when Ethernet cabling is unavailable or undesirable.

Internet Protocol (IP)

IP is a messaging protocol that addresses and sends packets across the network.

To communicate using IP, network devices must have an assigned IP address, domain name, gateway, and netmask.

IP addresses, subnets, and gateway identifications are automatically assigned if you are using the device with Dynamic Host Configuration Protocol (DHCP). If you are not using DHCP, you must manually assign these properties to each device locally.

The device supports IPv6 addresses. For more information, see the 『Features and Services Guide for Cisco Unified Communications Manager』, “Internet Protocol Version 6 (IPv6)” chapter.

Link Layer Discovery Protocol (LLDP)

LLDP is a standardized network discovery protocol (similar to CDP) that is supported on some Cisco and third-party devices.

The device supports LLDP on the PC port.

Link Layer Discovery Protocol - Media Endpoint Devices (LLDP-MED)

LLDP-MED is an extension of the LLDP standard for voice products.

The device supports LLDP-MED on the SW port to communicate information such as:

• Voice VLAN configuration
• Device discovery
• Power management
• Inventory management

For more information about LLDP-MED support, see the LLDP-MED and Cisco Discovery Protocol white paper:

Real-Time Transport Protocol (RTP)

RTP is a standard protocol for transporting real-time data, such as interactive voice and video, over data networks.

The device uses the RTP protocol to send and receive real-time voice traffic from other phones and gateways.

Real-Time Control Protocol (RTCP)

RTCP works in conjunction with RTP to provide QoS data (such as jitter, latency, and round-trip delay) on RTP streams.

RTCP is also used to synchronize the audio and video stream in order to provide a better video experience.

RTCP for audio calls is disabled by default. RTCP for video calls (including both audio streams and video streams in the video call) is enabled by default. You can enable or disable RTCP on individual devices from Cisco Unified Communications Manager Administration.

Session Description Protocol (SDP)

SDP is the portion of the SIP protocol that determines which parameters are available during a connection between two endpoints. Conferences are established by using only the SDP capabilities that all endpoints in the conference support.

SDP capabilities, such as codec types, DTMF detection, and comfort noise, are normally configured on a global basis by Cisco Unified Communications Manager or Media Gateway in operation. Some SIP endpoints may allow configuration of these parameters on the endpoint itself.

Session Initiation Protocol (SIP)

SIP is the Internet Engineering Task Force (IETF) standard for multimedia conferencing over IP. SIP is an ASCII-based application-layer control protocol (defined in RFC 3261) that can be used to establish, maintain, and terminate calls between two or more endpoints.

Like other VoIP protocols, SIP addresses the functions of signaling and session management within a packet telephony network. Signaling allows transportation of call information across network boundaries. Session management provides the ability to control the attributes of an end-to-end call.

Telepresence Interoperability Protocol (TIP)/Multiplex (MUX)

TIP/MUX is an IP protocol that is used to negotiate audio and video media options between endpoints prior to reception or transmission of media.

TIP/MUX is invoked for multiparticipant conferences and enables content sharing.

Transmission Control Protocol (TCP)

TCP is a connection-oriented transport protocol.

The device uses TCP to connect to Cisco Unified Communications Manager and to access XML services.

Transport Layer Security (TLS)

TLS is a standard protocol for securing and authenticating communications.

Upon security implementation, the device uses the TLS protocol when securely registering with Cisco Unified Communications Manager.

Trivial File Transfer Protocol (TFTP)

TFTP allows you to transfer files over the network.

On the device, TFTP enables you to obtain a configuration file specific to the device type.

TFTP requires a TFTP server in your network that the DHCP server can automatically identify. If you want a device to use a TFTP server other than the one that the DHCP server specifies, you must manually assign the IP address of the TFTP server by using the Settings application on the device.

For more information, see the "CiscoTFTP" chapter in the Cisco Unified Communications Manager System Guide.

User Datagram Protocol (UDP)

UDP is a connectionless messaging protocol for delivery of data packets.

UDP is used only for RTP streams. SIP signaling on the devices does not support UDP.