If you enforce IP range restrictions you should add these IP's to the whitelist. These are egress IP's for ScreenMeet's various global regions from where calls will originate to the SFDC REST API:
| IP | Region | Environment |
| 52.199.226.147 | ap-northeast-1 | Prod |
| 18.162.119.69 | ap-east-1 | Prod |
| 18.189.102.45 | us-east-2 | Prod |
| 54.203.112.48 | us-west-2 | Prod |
| 35.175.79.220 | us-east-1 | Prod |
| 13.233.63.88 | ap-south-1 | Prod |
| 18.136.32.15 | ap-southeast-1 | Prod |
| 13.237.249.155 | ap-southeast-2 | Prod |
| 13.209.37.67 | ap-northeast-2 | Prod |
| 18.197.215.150 | eu-central-1 | Prod |
| 18.202.156.6 | eu-west-1 | Prod |
| 18.228.167.44 | sa-east-1 | Prod |
| 3.98.107.181 | ca-central-1 | Prod (Coming soon...) |
| 16.170.26.79 | ue-north-1 | Prod (Coming soon...) |
| 18.101.72.0 | eu-south-2 | Prod (Coming soon...) |
| 51.112.81.246 | me-central-1 | Prod (Coming soon...) |