| Aspect | On Call Certified Scrum Master | Certified Scrum Master |
|---|
| Certifications | CSM required, often with additional on-call or emergency response training | CSM required, standard certification from Scrum Alliance |
| Work Environment | On-call basis, flexible hours, often remote or client-site | Regular office hours, team meetings, and project planning |
| Employer & Industry Usage | Tech, software, and consulting firms needing flexible Scrum support | Tech, software, and agile organizations with ongoing Scrum teams |
The On Call Certified Scrum Master provides agile support as needed, often outside regular hours, while the Certified Scrum Master works within standard team environments. Both roles require CSM certification but differ mainly in availability and work setting.