Mobile mgw

 

A media gateway is a translation device or service that converts media streams between disparate telecommunications technologies such as POTS , SS7 , Next Generation Networks ( 2G , 2.5G and 3G radio access networks) or private branch exchange (PBX) systems. Media gateways enable multimedia communications across packet networks using transport protocols such as Asynchronous Transfer Mode (ATM) and Internet Protocol (IP).

Because the media gateway connects different types of networks, one of its main functions is to convert between different transmission and coding techniques. Media streaming functions such as echo cancellation , DTMF , and tone sender are also located in the media gateway.

Media gateways are often controlled by a separate Media Gateway Controller which provides the call control and signaling functionality. Communication between media gateways and Call Agents is achieved by means of protocols such as MGCP or Megaco (H.248) or Session Initiation Protocol (SIP). Modern media gateways used with SIP are often stand-alone units with their own call and signaling control integrated and can function as independent, intelligent SIP end-points.

Mobile mgw

The Vocallo MGW software delivers a full VoIP implementation including echo cancellation, codec and tone processing, an adaptive jitter buffer and RTP/UDP/IP encapsulation. Beyond these basic functions, there is full support for T.38, SRTP, RTCP and other more advanced protocols.

The Vocallo MGW firmware is controlled by a packet-based API. This API allows the user to create, configure and control virtual objects that form an audio path. This model maps very easy to the user’s SIP or MEGACO-based application.

Vocallo MGW is designed for wideband (HD audio) from the ground up. It supports a broad range of wideband codecs, including G.722, G.722.1 and AMR-WB. The system automatically up-samples and down-samples as needed when connecting to a narrow-band leg. Similarly, conferencing that includes both wideband and narrowband participants will mix accordingly, offering the best possible quality to the wideband-enabled participants.

A media gateway is a translation device or service that converts media streams between disparate telecommunications technologies such as POTS , SS7 , Next Generation Networks ( 2G , 2.5G and 3G radio access networks) or private branch exchange (PBX) systems. Media gateways enable multimedia communications across packet networks using transport protocols such as Asynchronous Transfer Mode (ATM) and Internet Protocol (IP).

Because the media gateway connects different types of networks, one of its main functions is to convert between different transmission and coding techniques. Media streaming functions such as echo cancellation , DTMF , and tone sender are also located in the media gateway.

Media gateways are often controlled by a separate Media Gateway Controller which provides the call control and signaling functionality. Communication between media gateways and Call Agents is achieved by means of protocols such as MGCP or Megaco (H.248) or Session Initiation Protocol (SIP). Modern media gateways used with SIP are often stand-alone units with their own call and signaling control integrated and can function as independent, intelligent SIP end-points.