> Source: [sk110953](https://support.checkpoint.com/results/sk/sk110953)

# sk110953 - SIP phone calls are successfully established, but communication stops after several minutes 

| Property | Value |
|----------|-------|
| Solution ID | sk110953 |
| Date Created | 2016-04-13 |
| Last Modified | 2025-06-16 |
| Technical Level | Advanced |
| Products | Security Gateway |
| Versions | R82.10, R82, R81.20 |

## Symptoms

- * SIP phone calls are successfully established, but communication stops after several (\~15) minutes.

* Disabling of SecureXL resolves the issue.

* While SecureXL is enabled, output of "*fwaccel stat* " command shows:  

  `Accelerator Status : no license for SecureXL`

## Cause

There is no valid license for SecureXL.

## Solution

This solution requires authentication. Please log in to view the full solution.

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