[Asterisk-Users] Choppy communication issue

[Ing. Angel Gomez]

Steve Lorimer wrote:

>    I've setup a trial Asterisk install based on the RH8 install guide
>mentioned on this list. (Thanks, Andy!)  I've configured two other
>working systems with SJPhone software for SIP.  However, while I can
>call the phones, the communication is choppy.  About every three or four
>seconds it cuts out briefly and then returns to normal.  Perhaps someone
>can give me some pointers.  My setups are described below:
>
>1.  Asterisk server
>2.6 Athlon AMD / 512 MB Ram
>Using separate network card.
>Using built in sound card. (This should only cause problems for voice
>mail and prompts, correct?)
>
>2.  Client machine 1
>1Ghz Celeron, 256mb Ram, etc.
>
>3.  Client machine 2
>500 Mhz AMD, 96 mb Ram, etc.
>
>     They are connected via a BayNetworks 350F-HD switch.  (Fully
>capable, however, it does not have advanced packet routing/
>prioritizing.)  Is it practical to assume that the problem is in the
>switch?  (ie. needing QoS for VOIP packets)  Or perhaps I should be
>looking somewhere else to resolve this.
>     I would appreciate any pointers or suggestions offered.
> 
>
>
>
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>
>  
>
    Are the phones able to reinvite ( canreinvite=yes ) ? This for phone 
to phone conversation.
     Any Zaptel HW or ZTDummy  loaded ? This for interact with * .