I got a problem. remote sites can video call me on ISDN but when i try and call them my link speed drops from 384k to 64k, and phone just rings, no answer. they dont even see my calls coming through to them. when they call me i get connected at 320k even though we bot have 384 (3x64k ISDN lines) Calling any where using IP on the same system is fine.
I would check all your ports on the firewall. Test with a trusted user with all ports open. If that works, then you know you have to narrown the ports down.
Posted on Feb 26, 2008
Recheck the spid on your ISDN lines and make sure the order is correct
Posted on Aug 17, 2007
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I am experiencing call drops DISCONNECT #21 CALL REJECT on calls from one location only. All other calls connect fine. The terminating end
is a VSX7000 using a Lucent 5E Primary Rate ISDN pipe.
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