UCaaS Implementation Checklist: Everything You Need Before, During, and After Go-Live

UCaaS implementations that go poorly almost always fail for predictable reasons: number porting delays that were not anticipated, network issues that surfaced during go-live, or users who were not trained and reverted to old tools. This checklist is designed to help you avoid all of the common failure modes.

Use this as a working document. Work through it systematically in the weeks before your go-live date.

Phase 1: Pre-Deployment (4 to 6 Weeks Before Go-Live)

Number Porting Preparation

• Compile a complete list of all numbers to be ported (main lines, extensions, toll-free, fax)
• Collect the current account number and PIN for each number from your existing carrier
• Obtain your current carrier's Letter of Authorization (LOA) requirements
• Submit porting requests to your new UCaaS provider immediately after contract signing
• Confirm expected porting completion date in writing from your provider
• Build in a 2-week buffer after the porting date before cancelling your existing service

Network Assessment

• Run a network readiness assessment (most UCaaS providers offer free tools for this)
• Verify available bandwidth: minimum 100kbps per simultaneous call, 1.5Mbps per HD video call
• Confirm your router supports Quality of Service (QoS) prioritization for voice traffic
• Test your internet connection's jitter and packet loss (should be under 20ms jitter, under 1% packet loss)
• Identify any sites with connectivity concerns and plan remediation or backup options
• Confirm firewall rules allow the ports required by your UCaaS provider

Hardware Planning

• Decide which users need physical desk phones vs. software-only (desktop/mobile app)
• Confirm hardware compatibility with your chosen provider (not all IP phones work with all platforms)
• Order hardware with sufficient lead time (2 to 3 weeks for standard orders)
• Plan for conference room devices if needed
• Confirm headset compatibility for users who make high call volumes

Phase 2: Configuration (2 to 3 Weeks Before Go-Live)

System Configuration

• Create user accounts for all staff who will use the system
• Assign phone numbers to each user account
• Configure auto-attendant menus and routing rules
• Set up ring groups and call queues as needed
• Record or upload auto-attendant greetings and hold music
• Configure voicemail for each user and set up voicemail-to-email
• Set up business hours and after-hours routing rules
• Configure any integrations (CRM, helpdesk, calendar)

Integration Testing

• Test each CRM or helpdesk integration in a staging environment before go-live
• Verify that call logs appear correctly in connected systems
• Test click-to-call functionality if applicable
• Confirm that call recording is enabled for required users and stored in the expected location
• Test any custom workflows or API-based integrations end-to-end

Phase 3: User Preparation (1 to 2 Weeks Before Go-Live)

Training

• Schedule training sessions for all users before go-live, not after
• Prepare user-specific quick reference guides for common tasks (making calls, transferring, voicemail)
• Train admin users separately on system management, user creation, and call routing changes
• Ensure mobile app is installed and tested on all team members' devices before go-live
• Run a call quality test with each remote or home-office user to identify network issues

Communication

• Communicate go-live date to all staff with at least one week of notice
• Identify a point of contact for post-go-live questions and issues
• Prepare a message to external contacts if your main numbers will briefly be affected during porting
• Set up a backup communication method (mobile phones, forwarding) for the porting window

Phase 4: Go-Live Day

• Schedule go-live on a Tuesday, Wednesday, or Thursday (avoid Mondays and Fridays)
• Have your UCaaS provider's support line on standby for the first 4 hours
• Test inbound calls to each main number immediately after porting completes
• Test outbound calls from multiple users and locations
• Verify voicemail is functioning for all users
• Confirm auto-attendant is routing calls correctly
• Check that call recording is capturing as expected
• Have a rollback plan if critical issues emerge (temporary forwarding to mobile numbers)

Phase 5: Post Go-Live (First 30 Days)

• Collect user feedback on call quality and usability within the first 2 weeks
• Review call analytics to identify routing or quality issues
• Address any remaining hardware or connectivity issues identified during initial use
• Confirm your old carrier has been cancelled and you are not paying for both services
• Schedule a 30-day review with your UCaaS provider to address any outstanding items
• Document your final configuration for future reference and onboarding new users

Common Implementation Mistakes to Avoid

• Porting too late: Number porting can take 2 to 6 weeks and sometimes longer for toll-free or international numbers. Start this process the day after signing.
• Skipping network assessment: A surprising number of UCaaS quality issues trace back to network problems that a pre-deployment assessment would have caught.
• Training after go-live: Users who are not trained revert to old habits, use the system incorrectly, or generate avoidable support tickets.
• Going live on a Monday: Monday go-lives mean the first full week of use starts on day one, maximizing exposure to issues when your team is at its busiest.
• Cancelling old service too early: Wait until porting is fully complete and stable before cancelling your existing carrier account.