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Home > Archive > Voice Over IP in UK > September 2006 > "tin can"effect on incoming calls
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| Author |
"tin can"effect on incoming calls
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| Hi,
Having used VoIP for over a year now I've never really had a problem
with the quality of the calls.. Now however, having started to use VoIP
for incoming aswell as outgoing I am having a problem where the person
who calls me hears a "tin can" voice. The incoming voice is fine. I am
running on a 4mb line, so bandwidth should not be a problem. I have
tried a number of codecs and they all sound similar.
What can I do to improve on this?
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| Daviey Walker 2006-09-18, 1:11 pm |
| Scope wrote:
> Hi,
>
> Having used VoIP for over a year now I've never really had a problem
> with the quality of the calls.. Now however, having started to use VoIP
> for incoming aswell as outgoing I am having a problem where the person
> who calls me hears a "tin can" voice. The incoming voice is fine. I am
> running on a 4mb line, so bandwidth should not be a problem. I have
> tried a number of codecs and they all sound similar.
>
> What can I do to improve on this?
What protocol are you using (SIP / IAX2?) What ports have you opened?
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| {{{{{Welcome}}}}} 2006-09-18, 1:11 pm |
| Thus spaketh Scope:
> Hi,
>
> Having used VoIP for over a year now I've never really had a problem
> with the quality of the calls.. Now however, having started to use
> VoIP for incoming aswell as outgoing I am having a problem where the
> person who calls me hears a "tin can" voice. The incoming voice is
> fine. I am running on a 4mb line, so bandwidth should not be a
> problem. I have tried a number of codecs and they all sound similar.
>
> What can I do to improve on this?
4Mbit is your incomming speed, so incoming sound would be fine.
Your outgoing speed would be much lower, but should still be enough to
make outgoing sound to be fine too.
Though various codecs may make some differences, but not to make then
sound like a tin can.
--
DVD rental: www.southeastbirmingham.co.uk/dvd
PAYG Mobile Offers: www.southeastbirmingham.co.uk/payg
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| Daviey Walker wrote:
> Scope wrote:
>
>
> What protocol are you using (SIP / IAX2?) What ports have you opened?
Sorry, this is SIP, and I have forwarded 5060/5061.. I tried without
forwarding the ports but incoming phonecalls would not ring, but
terminate at the provider (even though it was registering OK).
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| Ivor Jones 2006-09-19, 1:11 am |
| "Scope" <scope@somewhere.com> wrote in message
news:450eb3a1$0$10280$c3e8da3@news.astraweb.com
> Hi,
>
> Having used VoIP for over a year now I've never really
> had a problem with the quality of the calls.. Now
> however, having started to use VoIP for incoming aswell
> as outgoing I am having a problem where the person who
> calls me hears a "tin can" voice. The incoming voice is
> fine. I am running on a 4mb line, so bandwidth should not
> be a problem. I have tried a number of codecs and they
> all sound similar.
> What can I do to improve on this?
What service/equipment are you using..?
Ivor
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| Daviey Walker 2006-09-19, 7:11 am |
| Scope wrote:
> Daviey Walker wrote:
>
> Sorry, this is SIP, and I have forwarded 5060/5061.. I tried without
> forwarding the ports but incoming phonecalls would not ring, but
> terminate at the provider (even though it was registering OK).
Could you describe the sound as 'underwater'?
Try forwarding the following ports:
5060 / UDP (SIP signaling)
(5061 required if more than more concurrent external call)
5004 / UDP (RTP, language)
(5005 required if more than ....)
10000 UDP (STUN)
For X-Lite use: Port 8000 - 8019 / UDP
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| Daviey Walker wrote:
> Scope wrote:
> Could you describe the sound as 'underwater'?
>
> Try forwarding the following ports:
> 5060 / UDP (SIP signaling)
> (5061 required if more than more concurrent external call)
> 5004 / UDP (RTP, language)
> (5005 required if more than ....)
> 10000 UDP (STUN)
>
> For X-Lite use: Port 8000 - 8019 / UDP
No I dont think it sounds like underwater, more of a metal sound.
I have forwarded the ports and will keep an eye on the problem as it
doesnt happen all the time.
Thank you for your input.
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| Ivor Jones wrote:
> "Scope" <scope@somewhere.com> wrote in message
> news:450eb3a1$0$10280$c3e8da3@news.astraweb.com
> What service/equipment are you using..?
>
> Ivor
>
Im using a PAP2 on voip.co.uk.
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| The Invalid 2006-09-19, 7:11 am |
| On Mon, 18 Sep 2006 15:56:42 +0100, Scope <scope@somewhere.com> wrote:
>Hi,
>
>Having used VoIP for over a year now I've never really had a problem
>with the quality of the calls.. Now however, having started to use VoIP
>for incoming aswell as outgoing I am having a problem where the person
>who calls me hears a "tin can" voice. The incoming voice is fine. I am
>running on a 4mb line, so bandwidth should not be a problem. I have
>tried a number of codecs and they all sound similar.
>
>What can I do to improve on this?
Dump it and get Skype
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| The Invalid wrote:
> On Mon, 18 Sep 2006 15:56:42 +0100, Scope <scope@somewhere.com> wrote:
>
>
> Dump it and get Skype
>
Oh Please! Please dont start that argument here in my thread. I have
done my research and ended up on SIP (no competition really).
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| Brian A 2006-09-19, 7:11 am |
| On Tue, 19 Sep 2006 08:55:04 +0100, Scope <scope@somewhere.com> wrote:
>The Invalid wrote:
I use an SPA-3000 with voip.co.uk for outgoing calls and the call
quality is very good. There was a sustained period of time when this
was not so. However, I believe that it was NOT the VSP's fault.
At the time Blueyonder were in a process of upgrading. I got some
terrible quality calls and calls dropping out. So, this could also be
a fault of your ISP as I can confirm that voip.co.uk are A1 for me
atm.
1. I would suggest that you try a different codec.
Currently my preferred is G711a but with all other codecs enabled.
2. This might sound simplistic and obvious, but often these things
have simple solutions...have you tried using a different handset?
[vbcol=seagreen]
>Oh Please! Please dont start that argument here in my thread. I have
>done my research and ended up on SIP (no competition really).
PLEASE, PLEASE can we have a separate newsgroup for Skype !!
uk.telecom.skype please and :-)
rename this one uk.telecom.skypeisbanned.voip
Remove 'no_spam_' from email address.
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| Brian A wrote:
> On Tue, 19 Sep 2006 12:56:23 +0100, Paul Cupis <paul@cupis.co.uk>
> wrote:
> Interesting information, thanks for that.
> However, I am just living in hope that one of the Skype enthusiasts
> will start a new group.
That wont happen Brian.. They are too busy trying to convince us SIP
users that Skype is the dogs.. That being locked into one company is the
best way forward.. That using a system where 3/4 of the users are bound
to their computers (rather than "standard" phones), and as such not
available for phonecalls alot of the time, is a good thing. That you can
EVEN send messages to each other when on the computer.
Leave them to it. ;-)
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