[on-asterisk] External hosted server for the PBX vs PBX On-Premises
Aloysius Thevarajah Lloyd
There are many factors in choosing whether
1. External hosted server for the PBX
2. Bring it in-house.
Right Now I have a Mix of hosted and in-house.
Which one is better? ( It terms of availability )
Thank you.
Lloyd
Wes Newbold
Assuming that your in-house data centre is what you'd normally expect to see in a regular SMB (single WAN circuit, off the shelf routers, servers etc), I would guess that from a availability perspective (to the rest of the world); using a hosted server would have higher availability.
Pro's
> Multiple upstream peers / providers - no single point for connectivity failure
> Sophisticated power infrastructure (gen sets / DC power plant / UPS's) - no single point for power failure
> Proactive environmental monitoring - less likely that a fan failure will cause the slow but eventual death of your server due to overheating
Con's
> ability to use PRI's is slim to none, SIP trunks are likely your only option (not really a Con)
> Although your PBX may be "high availability" if that single WAN circuit to your office fails, no one is getting calls (though the IVR's and VM's will work just fine for inbound calls)
> you can overcome this by using those SIP trunks to failover those calls to cell phones for those in the office that MUST receive calls in the event of a local outage
How's that for a start?
Wes
Henry L.Coleman
Dividing the upload bandwidth by the codec bandwidth will give you the number of
concurrent calls
so in theory with G711 and 850kb bandwidth will support 10 concurrent calls ( in
practice it's more like
eight)
This can support about 16 phones in a normal office environment.
So a hosted system is good for about 15 phones or less (assuming one inter-extension call)
For anything larger than 15 phones, in-house is better.
There are other issues too, with a hosted system the host has more control over the
environment and
security, therefore a higher service level. On the other hand most small in-house
systems can provide for
a UPS and can back up the cofiguration,CDR, and voicemail.
My personal preference is for hosted systems for 3 or 4 phones and in-house for anything
over that.
Henry L.Coleman [VoIP-PBX.ca]
Henry L.Coleman [VoIP-PBX.ca]
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> Aloysius Thevarajah Lloyd<
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TianLun Song
solution looks like more practical for small customers (less than 5 phones)
based on my experience
--
Thank you
Patrick Song
Thinking globally, Networking locally
CCVP, CCNP, M.Eng in Telecommunications
Cell:1-647-868-2950
Jason Rose
I currently have small setups of each running... My hosted solution has three remote offices that all connect with <= 10 phones each, and are all using off the shelf hardware / services. Because the client didn't want to pay for a dedicated line, I am taking advantage of the hosted solutions bandwidth.
My hosted server is with link2voip. I have had a few customer service issues, but none related to functionality (those are all answered quickly). Im paying $35/mo tho their news section advertises at $25/mo.
Incase ur wondering, the server specs are below...
* FreePBX Web Interface
* Asterisk
* MySQL
* FreeSwitch
* Hardened UNIX Operating System
* 10GB of HDD Space * 1 Static IP Address
* Direct Connection to the PSTN with UNLIMITED Bandwidth
* 100GB/mo of Public IP Bandwidth (to the Internet)
* A Firewall
* Full root SSH access
If by chance ur gonna get one, let me know and I'll give you my account name for a referral (if you are kind enough)...
J
Aloysius Thevarajah Lloyd
Thank you for the information.
Let me change my previous question
Do We co-lo/Dedicated the server for PBX or keep the Server for the PBX
inside the on-premises.
As Henry said correct we can use only 8 calls. But if we decide to use g729
we can go little bit more.
Thank you.
Lloyd