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Niggy
Brekeke Talented
Joined: 07 Oct 2007
Posts: 86
Location: Riyadh-ksa
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 Posted: Mon Apr 13, 2009 3:58 am Post subject: How to improve my VoIP calls voice quality? |
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1. Brekeke Product Name and version: 2_2_6_2
2. Java version:
3. OS type and the version:Server 2003 in PBX machine & XP in clients.
4. UA (phone), gateway or other hardware/software involved: X-Lite, Grandstream FXO 4 ports.
5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/networkpatterns.html :2
6. Your problem:
He all,
I'm connecting my internal LAN with PSTN through an FXO, the calls come from pstn to brekek pbx & directed to the desired ext. (x-lite) , most of the time the voice quality is fine bt somtime it becomes poor.
So how could i get the highest possible voice quality ?
& is it possible to get a (pstn to pstn/pstn to mobile) voice quality
with my Voip calls? or at least near to it?
regards 2 all.. |
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Haddas
Brekeke Guru
Joined: 17 Jan 2008
Posts: 170
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| Posted: Mon Apr 13, 2009 12:12 pm Post subject: |
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Which audio codec are you using in X-Lite and FXO?
Try to use another audio codec.. It will improve voice quality. |
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Niggy
Brekeke Talented
Joined: 07 Oct 2007
Posts: 86
Location: Riyadh-ksa
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| Posted: Mon Apr 20, 2009 2:53 am Post subject: |
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| Haddas wrote: |
Which audio codec are you using in X-Lite and FXO?
Try to use another audio codec.. It will improve voice quality. |
hi Haddas,
well i cant find a voice coec option in x-liat !! in my FXO I listed my preferred coded as below:
1-PCMA
2-PCMU
3-G723.1
4-G729A/B
5- GSM
Actually I dont know which 1 is better for me!! 
which 1 should i use?
thanks. |
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hope
Brekeke Master Guru
Joined: 15 Jan 2008
Posts: 862
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| Posted: Mon Apr 20, 2009 10:39 am Post subject: |
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you can check xLite codec from options/advanced/Audio codecs
try with pcmu(g711 ulaw) |
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juanmanuel
Brekeke Guru
Joined: 04 Mar 2009
Posts: 107
Location: Medellin,Colombia
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| Posted: Thu May 07, 2009 12:31 pm Post subject: |
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| hope wrote: |
you can check xLite codec from options/advanced/Audio codecs
try with pcmu(g711 ulaw) |
HI,
If you have QoS switchs, please activate it at DiffServ with DSCP 46, X-lite marks the IP packetrs withs thsi value in DSCP field.
I your switchs are unable for activiate QoS, you must to cahnge them.
Juan Acevedo
_________________
Juan Manuel Acevedo
Medellin, Colombia
email:jacevedo@e-global.com.co |
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Haddas
Brekeke Guru
Joined: 17 Jan 2008
Posts: 170
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| Posted: Tue May 12, 2009 10:17 am Post subject: |
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Niggy,
CPU and memory spec will also effect voice quality.
I recommend that you use high-spec PC for Brekeke PBX. |
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