Below are the SLA parameters for Video and Voice.
Transport network SLAs for video quality
Recommended network SLA for video[4] is as follows:
- Latency ≤ 150–300ms
- Jitter ≤ 10 ms–50ms
- Loss ≤ 0.5%
Incidentally the recommended network SLA for transporting audio are:
- Latency ≤ 150–300ms
- Jitter ≤ 20 ms–50ms
- Loss ≤ 1%
Please refer below link for more details
https://www.cisco.com/c/en/us/support/docs/quality-of-service-qos/qos-video/212134-Video-Quality-of-Service-QOS-Tutorial.html