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VOIP 4602ip heavy data use

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auEric

Technical User
Jul 13, 2005
73
AU
I have several 4602ip phones working well with a 406v2 on 2.1.35 using G.729(a). One site connected via 1500/256 ADSL connection is having problems, whenever he connects an IP phone, we have tested 3 different phones, the phone starts to draw data at such a high rate the DSL connection becomes unusable, ping time rise from 40-50 ms to hundreds and even thousands ms.
 
I am not an expert at this stuff but look in the MTU settings on the equipment.
 
MTU on the linksys vpn router is set to auto which I think is 1492
 
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