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### Description We are converting udp call to tcp call in kamailio. kamailio sending out an invite to a destination. Before sending, kamailio resolving that destination domain to IP. After receiving invite request, Destination send 180 and 200 OK . 200 Ok contact contains the domain name of destination. After this kamailio forward those request to next route. kamailio recieved the ack from upstream. After reciving the ack from upstream it resolves again the domain name to different IP, as domain name have 2 IP's behind.

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### Troubleshooting

#### Reproduction

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#### Debugging Data

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#### SIP Traffic

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### Possible Solutions

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### Additional Information

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