[Freeswitch-users] FreeSwitch/voip on EC2 or other cloud/virtual services

[Avi Marcus]

I keep hearing that amazon has unpredictable timing - I've been using
Linode - xen - without any issues for FS for low volume. I tested 200
MOH channels on the lowest plan with only a few dropped packets. If
you're running that volume, you can afford more than $20/month for
their cheapest box with up to 39 other people on the same machine.

Linode says their CPU is the most under-utilized resource. The clock
tests in FS have always been good, but you can experiment with the
1000hz centos or new tickless + timerfd or something. But I've had
very good experience with Linode for my virtualization. (just don't go
California datacenter, HE has been having trouble...)

-Avi Marcus




On Tue, Jul 5, 2011 at 3:23 PM, Steven Ayre <steveayre at gmail.com> wrote:
> I haven't personally, but I have seen some people on the list using EC2 for
> FS. AFAIK it will work, essentially, for some value of work.
>
> However, when running a realtime server such as FS on a virtual machine you
> have to bear in mind that the guest OS has little control of timing. The
> host can take away processing time unpredictibly for other tasks, especially
> if the server is quite loaded. That means that keeping a constant timer
> running can be tricky for FS to do, which is why you saw many people have
> had clock and audio quality problems. Jitter buffers will cover it up, but
> can only do so much.
>
> How well it performs is probably best determined by setting it up yourself
> and doing some testing.
>
> -Steve
>
>
>
>
> On 5 July 2011 12:00, Sanjay Arora <sanjay.k.arora at gmail.com> wrote:
>>
>> Hello all
>>
>> I am looking to find out from users about voip on cloud, especially FS on
>> Amazon EC2. Google gave very few results. There were very few positive
>> posts/articles, among them Eric Wickstrom's post on this list around 2009
>> but many seemed to be having clock/echo related problems.
>>
>> I would like to ask if any of you are successfully using Amazon as a voip
>> hosting provider & what are the issues involved/stumbling blocks.
>>
>> I am looking to install a sme multi-tenant production system and will be
>> selling voip minutes to a small focus target segment. I am mostly a
>> marketing man & a small-time hobby sys-admin, so I'd also like to know how
>> difficult it is.
>>
>> On a side note, I would like to solicit your opinion of Sipwise free & pro
>> edition especially with respect to deployment on Amazon cloud.
>>
>> With best regards & thanks.
>> Sanjay.
>>
>>
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