[Asterisk-Users] Re: How is Teliax ?

[Michael Welter]

You cannot criticize Teliax until you investigate how your calls are 
getting to them.

I have a customer on 17th St. in downtown Denver who use Qwest.net as 
their ISP.  They use Teliax (on 16th St.) as their ITSP.  Piece of cake, 
right?

This may have changed recently, but Qwest doesn't have any peering 
arrangements in Denver (!), so, to get to the "rest" of the Internet, 
Qwest traffic is routed over a very congested circuit to Dallas where it 
has a peering arrangement with Sprint.

For the ordinary Internet user, this trip to Dallas using TCP won't be 
noticed.  The TCP protocol will resend any dropped packets.

For my VoIP customer having UDP packets dropped at congested routers in 
Dallas, it's a disaster.  This VoIP connection between Qwest.net and 
Teliax is not suitable for VoIP, and it's not the fault of Teliax.

Having said all that, I see where Teliax have installed the voip-co4 
host on Viawest.  Are you using that host for your analysis?

asterisk at anime.net wrote:
> Lonnie Abelbeck wrote:
>>  <asterisk <at> anime.net> writes:
>>> On Thu, 30 Mar 2006, Giridhar Reddy Bandi wrote:
>>>> I am looking at purchasing some DID lines from Teliax to install it 
>>>> on my
>>>> asterisk.
>>>> i would like to know some feed back on "Teliax" before i purchase.
>>>> suggest me if there are better sevice providers.
>>> I have had issues with termination on teliax. Callers tell me I sound 
>>> choppy to them. Teliax origination has no problems at all strangely 
>>> enough.
>> If you used SIP instead of IAX2 with Teliax you will have better 
>> quality calls.
>>  The 'choppy' sound occurs with IAX2 and not SIP at Teliax.
>> I can recommend Teliax, but use SIP.
> 
> But I _am_ using SIP. I tried all the various teliax gateways including 
> the beta test ones and had choppiness with all of them.
> 
> As I said before, teliax origination had no choppiness problems at all. 
> Only termination had issues.
> 
> I had no problems - termination or origination - with junction networks, 
> despite the fact they had 3x higher latency than teliax. JN is more 
> expensive than teliax though.
> 
> Also, I have talked to others who had similar choppiness problems with 
> teliax. So it's not just me.
> 
> -Dan
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-- 
Michael Welter
Telecom Matters Corp.
Denver, Colorado US
+1.303.414.4980
mike at TelecomMatters.net
www.TelecomMatters.net