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* [[VoIP PSTN Gateway]]

* Megaco (H.248) and MGCP (Media Gateway Control Protocol) ... conferencing. Companies, in order to reduce costs, can also buy their own gateways, which, in some situations, is worth it.

* [[VoIP PSTN Gateway]]

* [[VoIP PSTN Gateway ]]

== Gateway== A gateway is a device which connects either to ISDN (PRI/BRA) or an analog (FXO) line

...M2UA protocol but then no additional layer 3 processing can be done on the gateway part.<br>

...vised layers 2; They are controlled by the active clients connected to the gateway. For a better understanding I will explain the purpose of gateway-client model separately.

It operates in a gateway client model.<br> The gateway acts as a MTP User Part and it has the purpose to:

Accessing circuits on a Cisco Media Gateway requires configuration in the Gateway (Cisco) and also in the Call Controller (Yate). '''IMPORTANT:''' All Cisco gateways support a single active MGCP Call Agent at a time (although it may have ba

'''IMPORTANT''': Cisco gateways support a maximum of 4 SS7 links.<br/>This is enough for small configurati '''Therefore for flexibility it is desirable to have several smaller gateways rather than a big one.'''

... voice another machine will be used (see Server3) that will act as a Media Gateway. Configuring mgcp gateway and the 2 EndPoints that are set in each machine (in Server1 and in Server2

'''IMPORTANT:''' All Mediant gateways support a single active MGCP Call Agent at a time (although it may have ba '''Therefore for flexibility it is desirable to have several smaller gateways rather than a big one'''.

It is possible to configure a Mediant gateway either from the Web interface or by editing the ''BOARD.ini'' configuration The interface numbers are abstractions that identify any interface on the gateway.

...is way the SCCP is used to decode the SCCP message for M3UA-GW so that the gateway can look for the routing parameters.<br/>

==M2UA Gateway== ===M2UA Gateway over SCTP===

M2UA operates as in a gateway client model. On M2UA gateway no additional data processing can be done because it has no SS7 layer 3 att

...is way the SCCP is used to decode the SCCP message for M3UA-GW so that the gateway can look for the routing parameters.<br/>

* '''M2UA''' (SIGTRAN) to connect over SCTP/IP to a Signaling Gateway that implements MTP2. ...dia.org/wiki/Reliable_User_Datagram_Protocol RUDP/IP] to a Cisco Signaling Gateway that implements MTP2.

* MGCP gateway with line package ...sport]] the Q.921 signaling of the D channel over SCTP/IP from a Signaling Gateway.

For configuring users, gateways no matter the protocol used, other files are used as regfile.conf or regex