lack of conectivity with subinterface of voice VLAN
I have a CME flash:c3825-adventerprisek9-mz.124-22.T.bin" with SIP linksys phone
the CME was working fine but today suddenly the user can not make internal or calls to PSTN. I notice that I can not ping to the phones I need to shutdown the subinterface 0.200 voice VLAN and then not shutdown, but after some minutes 5 or 6 the problems comes back.
what it could be the reason ?? how can I solved this issue??
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