VoIP Mailing List Archives
Mailing list archives for the VoIP community |
|
| View previous topic :: View next topic |
| Author |
Message |
atis at iq-labs.net
Guest
|
 Posted: Thu Jan 17, 2008 8:09 am Post subject: [asterisk-users] Zaptel timing on TE405P |
 |
|
Hi,
I'm wondering why zttest shows
Best: 99.976 -- Worst: 99.967 -- Average: 99.971469, Difference: 99.971469
Shouldn't it be 100% as timing is hardware and comes from PRI? Am I
missing some kernel config?
Regards,
Atis
My /etc/zaptel.conf is
span=1,4,0,esf,b8zs
span=2,3,0,esf,b8zs
span=3,2,0,esf,b8zs
span=4,1,0,esf,b8zs
#lspci
07:03.0 Communication controller: Digium, Inc. Wildcard TE405P
Quad-Span togglable E1/T1/J1 card 5.0v (rev 02)
#lsmod | grep -P "(zap|zt|wc)"
zttranscode 17808 0
wcusb 25088 0
wctdm 46272 0
wcfxo 21536 0
wctdm24xxp 121024 0
wcte11xp 34848 0
wct1xxp 23456 0
wct4xxp 323904 96
zaptel 202984 215
zttranscode,wcusb,wctdm,wcfxo,wctdm24xxp,wcte11xp,wct1xxp,wct4xxp,tor2
crc_ccitt 10817 1 zaptel
--
Atis Lezdins
VoIP Developer,
IQ Labs Inc.
atis at iq-labs.net
Skype: atis.lezdins
Cell Phone: +371 28806004
Work phone: +1 800 7502835 |
|
| Back to top |
|
 |
tzafrir.cohen at xorco...
Guest
|
| Posted: Thu Jan 17, 2008 8:35 am Post subject: [asterisk-users] Zaptel timing on TE405P |
|
|
On Thu, Jan 17, 2008 at 03:09:59PM +0200, Atis Lezdins wrote:
| Quote: | Hi,
I'm wondering why zttest shows
Best: 99.976 -- Worst: 99.967 -- Average: 99.971469, Difference: 99.971469
Shouldn't it be 100% as timing is hardware and comes from PRI? Am I
missing some kernel config?
|
It may be slightly different. Your system clock may be slightly off. But
more importantly, zttest doesn't start and stop messuring time at
exactly the right spot.
--
Tzafrir Cohen
icq#16849755 jabber:tzafrir.cohen at xorcom.com
+972-50-7952406 mailto:tzafrir.cohen at xorcom.com
http://www.xorcom.com iax:guest at local.xorcom.com/tzafrir |
|
| Back to top |
|
|
atis at iq-labs.net
Guest
|
| Posted: Thu Jan 17, 2008 8:48 am Post subject: [asterisk-users] Zaptel timing on TE405P |
|
|
On 1/17/08, Tzafrir Cohen <tzafrir.cohen at xorcom.com> wrote:
| Quote: | On Thu, Jan 17, 2008 at 03:09:59PM +0200, Atis Lezdins wrote:
| Quote: | Hi,
I'm wondering why zttest shows
Best: 99.976 -- Worst: 99.967 -- Average: 99.971469, Difference: 99.971469
Shouldn't it be 100% as timing is hardware and comes from PRI? Am I
missing some kernel config?
|
It may be slightly different. Your system clock may be slightly off. But
more importantly, zttest doesn't start and stop messuring time at
exactly the right spot.
|
Anything i can improve?
I think - zttest should do it correctly, as manpage says - definite
pass is 100% or 99.99%
I'm just having some issues with faxing, so i thought this could be a problem.
Regards,
Atis
--
Atis Lezdins
VoIP Developer,
IQ Labs Inc.
atis at iq-labs.net
Skype: atis.lezdins
Cell Phone: +371 28806004
Work phone: +1 800 7502835 |
|
| Back to top |
|
|
atis at iq-labs.net
Guest
|
| Posted: Fri Jan 18, 2008 10:44 am Post subject: [asterisk-users] Zaptel timing on TE405P |
|
|
On 1/17/08, Atis Lezdins <atis at iq-labs.net> wrote:
| Quote: | On 1/17/08, Tzafrir Cohen <tzafrir.cohen at xorcom.com> wrote:
| Quote: | On Thu, Jan 17, 2008 at 03:09:59PM +0200, Atis Lezdins wrote:
| Quote: | Hi,
I'm wondering why zttest shows
Best: 99.976 -- Worst: 99.967 -- Average: 99.971469, Difference: 99.971469
Shouldn't it be 100% as timing is hardware and comes from PRI? Am I
missing some kernel config?
|
It may be slightly different. Your system clock may be slightly off. But
more importantly, zttest doesn't start and stop messuring time at
exactly the right spot.
|
Anything i can improve?
I think - zttest should do it correctly, as manpage says - definite
pass is 100% or 99.99%
I'm just having some issues with faxing, so i thought this could be a problem.
|
Ping.
Any ideas what i could do to improve timing accuracy? Some kernel
options? Newer kernel? Currently I have kernel from RPM:
Linux asterisk2 2.6.22.7-57.fc6 #1 SMP Fri Sep 21 19:45:12 EDT 2007
x86_64 x86_64 x86_64 GNU/Linux
Regards,
Atis
--
Atis Lezdins
VoIP Developer,
IQ Labs Inc.
atis at iq-labs.net
Skype: atis.lezdins
Cell Phone: +371 28806004
Work phone: +1 800 7502835 |
|
| Back to top |
|
|
tzafrir.cohen at xorco...
Guest
|
| Posted: Fri Jan 18, 2008 12:45 pm Post subject: [asterisk-users] Zaptel timing on TE405P |
|
|
On Fri, Jan 18, 2008 at 05:44:12PM +0200, Atis Lezdins wrote:
| Quote: | On 1/17/08, Atis Lezdins <atis at iq-labs.net> wrote:
| Quote: | On 1/17/08, Tzafrir Cohen <tzafrir.cohen at xorcom.com> wrote:
| Quote: | On Thu, Jan 17, 2008 at 03:09:59PM +0200, Atis Lezdins wrote:
| Quote: | Hi,
I'm wondering why zttest shows
Best: 99.976 -- Worst: 99.967 -- Average: 99.971469, Difference: 99.971469
Shouldn't it be 100% as timing is hardware and comes from PRI? Am I
missing some kernel config?
|
It may be slightly different. Your system clock may be slightly off. But
more importantly, zttest doesn't start and stop messuring time at
exactly the right spot.
|
Anything i can improve?
I think - zttest should do it correctly, as manpage says - definite
pass is 100% or 99.99%
I'm just having some issues with faxing, so i thought this could be a problem.
|
Ping.
Any ideas what i could do to improve timing accuracy? Some kernel
options? Newer kernel? Currently I have kernel from RPM:
|
The question is: "How to improve the meassurment of timing".
Also, some report that Steve Underwood's sliptest is a useful tool for
that. If you find it useful, I have a small patch that makes it slightly
more usable.
http://www.soft-switch.org/downloads/sliptest.c
--
Tzafrir Cohen
icq#16849755 jabber:tzafrir.cohen at xorcom.com
+972-50-7952406 mailto:tzafrir.cohen at xorcom.com
http://www.xorcom.com iax:guest at local.xorcom.com/tzafrir |
|
| Back to top |
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Search
