Polycom SoundPoint IP321/331

SoundPoint IP 321/331 is a SIP phone with 2-line support, which has excellent quality of sound and the wide range of IP telephony features. SoundPoint IP 321 has one 10/100 Ethernet port (331 model has two ports), through which it can be used in areas such as lobbies, hallways, resting rooms. You can also mount this device on the wall.

SoundPoint IP 321/331 phone has a full-duplex speakerphone (IEEE 1329 Type 1) with Polycom's legendary Acoustic Clarity technology that provides excellent sound quality and echo and noise free communication, as if the conversation is with the person standing next to you.
Phone is configured via an intuitive user interface; it has such features call hold, call parking, off-hook, call transfer and three-way conference, as well as more advanced features such as the use of a common line, XHTML support and processing of various types of calls.
These IP phones are designed to make installation, setup and modification much easier and more efficient. SoundPoint IP 321/331 phone, by default has to be placed on the table, but you can easily mount it on the wall without any additional accessories. Integrated support for IEEE 802.3af PoE allows flexible scanning and saving on cables. SoundPoint IP 321/331 supports remote maintenance and upgrade from different types of servers: FTP, TFTP, HTTP, or HTTPS. For the organization of a reliable and trouble-free operation, the phone supports software from the boot and call servers.

Providers in database: 6433

RTP Delivers Multimedia Data In Real Time

A Real-time Transport Protocol (RTP) is a protocol standard defined by the Internet Engineering Task Force (IETF) that outlines a management system for programs using real-time transmission of data through mutlicast or unicast network services in multimedia situations. Originally designed by the IETF for videoconferencing for multiple participants, the protocol is largely used in Voice over Internet Protocol applications. Despite its name, the protocol cannot guarantee real-time delivery of data, however, the RTP does compensate for jitters and can detect when data arrives out of sequence, both issues being popular in VoIP communication. In IP telephony, RTP works with a signaling protocol, such as SIP or H.323, in order to set up connections in a network.

View more WIKI

ZhengZhou Great Electronic Tech Co.,ltd

we are a professional manufacturer of IP phone and camera.we are a real factory so we can provide good quality product with good price.Do you have any interest in our products?pls kindly logo our web www.great-elec.com.