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Express 500 - IP Telephony problem

Hi, i have a problem in a site that is in a mine, there are under extreme conditions, the site is 3000 meters over the sea level. There are deployed 9 catalyst express 500 and unti yesterday all was ok, suddenly the calls begin to drop down between calls in the site and over the link (satellite) to the other site. Also, the ip phones can not stay registered to the call manager, they are booting continuosly.

Any suggestion or maybe you need more inforation.

Thanks in advanced ...

Jose

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New Member

Re: Express 500 - IP Telephony problem

What's the IOS version you're using on the CAT 500? Have you configured a flat VLAN for everything or used the Cisco-Voice VLAN for the PC+IP Phone smartports??

I'd also check the 'status' to which you've assigned the Call Manager Server (Should be set to Trusted to give it the necessary QoS).

Dave

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