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### Description rightnow, there is no stats about command sent to rtpengine and getting reply from rtpengine. There should be a stats that will tell that number of offer request sent: number of answer request sent: number of delete request sent: number of failed request for offer [after retry]: number of failed request for answer [after retry]: number of failed request for delete [after retry]:

This will help to identify actual number of failed request. <!-- Explain what you did, what you expected to happen, and what actually happened. -->

### Troubleshooting

#### Reproduction

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#### Debugging Data

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#### Log Messages

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#### SIP Traffic

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### Possible Solutions

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### Additional Information

* **Kamailio Version** - output of `kamailio -v`

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* **Operating System**:

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