Hosted Cloud Solution

[PFCCWA]

Hello,

If I was to provide a hosted cloud solution for a customer with a multi site / regional operation using sip/sip trunking..
Would I require SBC and MGW at each site?
I know there are dependencies but was considering SIP/Genesys suite with MGW (undecided on provider), connecting to regional offices through sip trunking via WAN to SBC (at site).
My question is really would I need a MGW at these regional offices for any reason (ie to allow inbound lines or can SBCs accept pstn/sip trunks?)
We do not want or have PBXs, therefore do I require a switch of some kind at the Hosted provider?
If there is a good guide or doc that explains this, would be useful as well.

Many thanks,

[Kubig]

I am afraid that the cloud problematic is so large and complex than there is no right place to learn about it. In general, is better to have deployed SBC at real office - for example due to traffic broadcasting.

[PFCCWA]

Would we also need MGW in real office, alongside SBC? or can SBC handle voice media without it and pbx?

[Kubig]

MGW is necessary in case when you need conversion of traditional circuit network (ISDN) to the IP (SIP, H323) or something like that. In cloud env I guess that all inputs to the system will be deployed in hosted environment. So on real-office should be deployed "just" SBC. But all depends on specific and requested scenario, goals and needs.

[Fra]

[quote author=PFCCWA link=topic=8442.msg37120#msg37120 date=1406121783]
Would we also need MGW in real office, alongside SBC? or can SBC handle voice media without it and pbx?
[/quote]
The SBC does handle voice, however, it usually terminates SIP/RTP traffic, rather than traditional PSTN trunks.
You would need to check with the SBC vendors what type of lines they support.

Fra