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Well I am using GSM as my main codec which
seems to be very nice… I would also suggest you looking at the
load of you CPU… I know that asterisk is very processor hungry… You can also change some settings in the
zapta and zaptel config.. to reduce echo and interference on the line.. From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of sdgesa gaeharth Below is the text of my
original post. I am not sure what Codec we are using. The "Codec
Preferences" phone setting shows, in order of preference, G.711u, G.711A,
G.729AB We are running asterisk-1.2.4 with zaptel-1.2.7 on Fedora Core
4-2.6.14-1.1656_FC4smp. It is installed on a Dell PE 2500 with
2x900 MHz processors and 1 Gb RAM and 1 SCSI Disk. The server has a Digium
TDM400P card which is connected to 4 POTS lines. The server is also
connected to a 100MB switched LAN where we have about 20 Polycom 501 phones
with the latest firmware updates. Nothing else runs on the server except an ftp
daemon which is never used except when a phone reboots. I have tried: turning off ACPI, turning off APCI, moving the card to
another PCI slot, changing the RX/TX gains. There are no shared IRQs. I have
tested the lines by unplugging them from the asterisk server and plugging them
directly into an analogue phone. Using "cat /proc/interrupts; sleep 10 ;
cat /proc/interrupts" I see that there are about 1,000 interrupts per
seconds between the card and the CPU. I do not think it is a network congestion problem as intra-office
communications as well as voicemail retrieval are always perfect. The Voip does
not go over any routers, just a max of 2 switches with a 1GB trunk. This
happens even off-hours when the network isn’t being used at all. There are never more than 2 people on the phone at the same time and it
is definitely not an over-utilized processor. I have trying to figure
this out for 2 months on and off with no success any help is appreciated. Thanks How many phone? What load is the server
under? From:
[EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of sdgesa gaeharth 1)Can anyone tell me how to do this on a Polycom 501?
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