Types of Video Calls You Can Make

User’s Guide for Polycom HDX Systems and the Polycom Touch Control

Depending on your system configuration, you might be able to make calls using ISDN, H.323, SIP, or V.35/RS-449/RS-530. You can place an audio-only call from Polycom HDX systems that have Analog Phone or Voice Over ISDN enabled.

The following table lists some possible call combinations.

From...	You can call...	By dialing...

ISDN	ISDN	Phone number

	IP	Phone number of the far-site gateway
		and the extension (E.164 address) of the
		far site.
		Enter the extension after the gateway
		number or wait until the gateway
		prompts you for the extension.

LAN	Networked and Public	SIP URI, E.164 address, DNS name, or
	Sites	IP address.

	Protected and Private	Typically, the far site's gateway number
	Sites	then the number of the far-site system.
		Consult with the far site about the best
		method for placing the call.

	ISDN	Depending on the H.323 gatekeeper or
		SIP server, the access code of the
		near-site gateway, the speed code, and
		the ISDN number of the far site. Contact
		your system administrator for more
		information.

Points to note about special dialing scenarios:

•When you call an IP system through a gateway that requires an extension (E.164 address), enter the extension in the dialing field whenever possible. Check with your network administrator for the extension delimiter you need to enter into the dialing field. For example, some networks use ## to separate the extension from the IP address.

•If you need to insert a pause, add one comma in the dial string for each second you want the system to pause.

8	Polycom, Inc.

3725-61794-005, A specifications

The Polycom A,3725-61955-004 is an advanced audio conferencing solution renowned for its quality and reliable performance. Designed to enhance communication in diverse settings, from large conference rooms to small meeting spaces, this device integrates cutting-edge technologies to ensure crystal-clear audio and seamless connectivity.

One of the standout features of the Polycom A,3725-61955-004 is its high-definition audio capabilities. Utilizing Polycom's patented HD Voice technology, this conference phone delivers a rich sound experience, providing natural warmth and clarity to conversations. This technology significantly reduces background noise and enhances the quality of voice transmission, thereby improving the overall meeting experience.

In terms of design, the Polycom A,3725-61955-004 is sleek and user-friendly. Its intuitive interface makes it easy for users to navigate through functions, allowing quick access to dialing and conferencing features. The device often includes a graphical user interface on a color display, providing visual cues for easier operation and management of calls.

Connectivity is another essential characteristic of the Polycom A,3725-61955-004. The device supports SIP (Session Initiation Protocol) and H.323 protocols, ensuring compatibility with a wide range of VoIP (Voice over IP) systems. This versatility allows organizations to integrate the conference phone seamlessly into their existing communication infrastructure. Additionally, the device usually features a variety of connectivity options, including standard telephone lines and network connections, facilitating an easier setup.

Another key technological feature is the advanced echo cancellation and noise reduction capabilities. Polycom’s Acoustic Clarity technology helps eliminate echoes and unwanted sounds, making it easier for participants to engage in a natural conversation without interruptions.

Security is also a priority with the Polycom A,3725-61955-004. The device is equipped with robust encryption protocols to ensure that sensitive conversations remain private and secure from potential eavesdropping.

Overall, the Polycom A,3725-61955-004 combines state-of-the-art audio technology, user-friendly design, and flexible connectivity options to create an exceptional conferencing experience. Its focus on audio quality, ease of use, and security makes it an invaluable tool for organizations looking to enhance their communication capabilities in any setting. With reliability and performance at its core, this conferencing solution is well-suited for modern business needs.

Polycom A, 3725-61794-005 manual Types of Video Calls You Can Make, From You can call By dialing

Models: 3725-61794-005 A