Hosted Server / SBC confusion

Discussion in '3CX Phone System - General' started by Joe Morrison, Feb 16, 2018.

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  1. Joe Morrison

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    I have scoured the forums, talked to support at our phone vendor and also 3cx support and still dont have good answers

    Situation.
    AWS hosted 3cx for 1 client
    Client has 20+ Locations
    Connecting all client locations to same server
    Remote extensions (Yealink phones) using provisioning URL (not STUN)
    No VPNs between locations and server

    Questions:

    Do i NEED an SBC at each location?
    Can multiple SBC's connect back to the server?
    Do SBC's really help with latency/jitter/garbled voice?

    I know there are a ton of factors but any help would be appreciated.

    Thanks!
     
  2. Joe Morrison

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    Also its all brand new so latest versions of 3CX, etc
     
  3. leejor

    leejor Well-Known Member

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    If a location has more than one, maybe two sets, then, yes, an SBC will save a lot of headaches, and bandwidth on internal calls.

    Yes, just as multiple, individual sets can register to a 3CX server, so can SBCs.

    If latency (or any other network (ISP) issue) is causing problems, then an SBC won't fix it. Voice quality will only be as good as the choice of Codecs and internet quality allow. It can't work miracles, unfortunately.

    In the event you didn't come across this...
    https://www.3cx.com/docs/3cx-tunnel-session-border-controller/
     
    #3 leejor, Feb 16, 2018
    Last edited: Feb 16, 2018
  4. accentlogic

    accentlogic New Member

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    Ditto what leejor said. If you have locations with one remote phone, you should be able to use STUN for those.
     
  5. neville

    neville New Member

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    Use the Raspberry PI SBC. I have one client with 22 locations using these with 3 or 4 phone per location with no issues.

    Latency, noise, etc. cannot be corrected with the SBC. With AWS, if you have a decent internet connection, you will be fine.
     
  6. eddv123

    eddv123 Active Member

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    Raspberry Pi I agree is a great device for the 3CX SBC however you must take note that they only support 20 extensions per Pi.

    You have said that you have 20+ locations but not specified how many users per site.

    If you need more than 20 per site(s) then you can either double up Pi SBC's (which 3CX now support) or run the SBC for Windows or Linux which support 50 extensions per SBC.
     
  7. Joe Morrison

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    Thank you everyone for your replies.
    I completely forgot to mention that each location would have 10-40 extensions each.

    Any suggestions on an mini/micro pc and or computer on a stick for the SBC?
     
  8. neville

    neville New Member

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    We use the Shuttle, NC02U for larger counts.
     
    #8 neville, Feb 18, 2018
    Last edited: Feb 18, 2018
  9. sip.bg

    sip.bg Active Member

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    I would rather rethink the networking model / hosting and use VPNs.
    Much more reliable than SBCs for quotes size of sites, regardless of improvements in SBC.
     
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