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what's a gateway?


what's a gateway?

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Super Bronze

what's a gateway?

Hi

Erm... well... it's lots of things. Typically it's a point of integration between two systems, that may or may not speak the same language.

So for example, since you've posted in the IP Telephony forum... a gateway round here is typically used to connect one IPT system to another; this connection might be a Cisco CallManager to the PSTN. In that scenario the gateway would tpyically be a Cisco router with software, interfaces, and DSPs that allows an IP call to be connected to a PSTN call on an E1.

It could also be a Cisco router connecting a CallManager to a SIP trunk; both legs would be IP and both could be SIP but you would have a gateway to manage the connection anyway (e.g. for security and compatibility).

Elsewhere it might be a server process - e.g. an MS Exchange mail system migth use an SMTP gateway to send mail through... this would be a relay for mail out to the wider world, again for security purposes typically.

Regards

Aaron Harrison

Principal Engineer at Logicalis UK

Please rate helpful posts...

Aaron Please remember to rate helpful posts to identify useful responses, and mark 'Answered' if appropriate!
1 REPLY
Super Bronze

what's a gateway?

Hi

Erm... well... it's lots of things. Typically it's a point of integration between two systems, that may or may not speak the same language.

So for example, since you've posted in the IP Telephony forum... a gateway round here is typically used to connect one IPT system to another; this connection might be a Cisco CallManager to the PSTN. In that scenario the gateway would tpyically be a Cisco router with software, interfaces, and DSPs that allows an IP call to be connected to a PSTN call on an E1.

It could also be a Cisco router connecting a CallManager to a SIP trunk; both legs would be IP and both could be SIP but you would have a gateway to manage the connection anyway (e.g. for security and compatibility).

Elsewhere it might be a server process - e.g. an MS Exchange mail system migth use an SMTP gateway to send mail through... this would be a relay for mail out to the wider world, again for security purposes typically.

Regards

Aaron Harrison

Principal Engineer at Logicalis UK

Please rate helpful posts...

Aaron Please remember to rate helpful posts to identify useful responses, and mark 'Answered' if appropriate!
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