Inbound call not showing in Asterisk

[amnahanif775]

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I mistakenly migrate MagnusBilling server to another new IP but now my DID's not working also I am not able to see any hit inside the asterisk related to incoming DID call If any one have resolution help me how do I resolve this and there have an possibility to change a installed server IP to new migrate one then server will start getting hit and send packet back to my did provider...

[amnahanif775]

When I dial from another to sip to DID which configure in my magnusbilling switch I get the error "The number is busy"

[amnahanif775]

This is what I got from my provider side..

[amnahanif775]

Provider said we are not getting back packet's from your switch..