[cisco-voip] Remote Site phones rebooting

[Matt Slaga (US)]

Check the saturation during an incoming call.  Generally speaking, you
should use up about 1-2kbps per phone for control.  Roughly 16kbps.  Add
in your ipsec header and vpn tunnel header information and you are
probably up to 48kbps or more.  When you use a shared line for all
devices, you have SCCP traffic being pushed at the same time to all
phones which may be oversaturating your QoS policy for SCCP.

 

Do you get this same behavior if you set a single extension, call and
let CFNA initiate?

 

 

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Aman Chugh
Sent: Friday, April 20, 2007 7:00 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Remote Site phones rebooting

 

All,

 

I have a remote site configured with 8-10 ipphones, the remote site uses
a IPSEC vpn tunnel to register with centeral site.We have a shared lines
configured on all the remote site phones, the issue is whenever we have
calls ringing on these shared lines and no one answers these , the phone
reboots and reregisters, its happening frequently with all phones , I
have checked bandwitdh utilization on my link which is below 50% ,  I
have dedicated b/w in  my qos configuration for call manager sccp
traffic. Has any one seen this or come across this before . CM is 4.1.3

 

 

TIA

 

Aman



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