Additional Features

Group RTP Paging (receives RTP streams)

You can configure the phone to allow it to receive a Real Time Transport Protocol (RTP) stream from pre-configured multicast address(es) without involving SIP signaling. This is called Group Paging on the IP phones. You can specify up to 5 multicast addresses that the phone listens for on the network. This feature is configurable using the Aastra Web UI only.

The 6753i in the local network listens for RTP on the preconfigured multicast address. The Phone displays the “Paging” message to the phone’s LCD. It uses the G711 uLaw CODEC for multicast RTP.

The recipient can drop the incoming page if required. The recipient can also set Do Not Disturb (DND) to ignore any incoming pages.

For incoming RTP multicasts, the ringing display is dependant on the setting for the “Allow Barge-In parameter. (See “Allow Barge In” on page 182.) If this parameter is disabled, and there is no other call on the phone, then the paging is automatically played via the default audio device.

If there is an existing call on the phone, the call initially displays in the ringing state. The user has the option to accept/ignore the call. If the “Allow Barge-In parameter is enabled, the RTP multicast call barges in, and any existing calls are put on hold.

If an RTP multicast session already exists on the phone, and the phone receives another incoming RTP multicast session, the priority is given to the first multicast session and the second multicast session is ignored. The behavior for the incoming calls in this case is also based on the setting for the “Allow Barge-in parameter. The incoming call is handled as if there were an existing call already on the phone.

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Model 6753i IP Phone User Guide

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Aastra Telecom 6753I manual Model 6753i IP Phone User Guide, Group RTP Paging receives RTP streams

6753I specifications

The Aastra Telecom 6753i is a versatile and robust IP phone designed for businesses seeking an efficient communication solution. With its array of features and advanced technologies, the 6753i caters to the needs of modern workplaces, ensuring productivity and seamless collaboration.

One of the standout features of the Aastra 6753i is its high-resolution graphical display. This 3.5-inch color screen provides users with clear visibility of essential information, making navigation through menus straightforward. The intuitive interface is further enhanced by programmable soft keys, allowing users to customize their experience according to their preferences.

The device includes three line appearances, which allows users to manage multiple calls efficiently. With the ability to handle simultaneous calls, the Aastra 6753i is suitable for busy environments requiring quick response times. Additionally, the phone supports a wide range of call handling features, including call waiting, call forwarding, and conference calling, enabling a seamless communication experience.

The 6753i is also equipped with HD audio technology, which enhances call clarity and user experience. This technology ensures that conversations sound natural and lifelike, facilitating effective communication between team members or clients. The phone also features a full-duplex speakerphone that allows hands-free operation without compromising audio quality.

In terms of connectivity, the Aastra 6753i supports Power over Ethernet (PoE), eliminating the need for additional power adapters and reducing cable clutter. This feature is particularly advantageous in office setups where space and organization are crucial.

Moreover, the 6753i is compatible with various VoIP protocols, such as SIP, enabling businesses to integrate the phone into their existing telecommunications infrastructure easily. The device offers advanced security features, including encryption and secure boot capabilities, ensuring that sensitive communications are protected.

The addition of a headset port offers further flexibility, allowing users to connect a headset for hands-free convenience, which is particularly useful during extended calls.

In summary, the Aastra Telecom 6753i embodies a blend of user-friendly design, advanced technology, and essential features, making it an ideal choice for businesses looking to enhance their communication capabilities. Whether in a small office or a large enterprise, the Aastra 6753i is designed to meet the demands of today's dynamic business environments.