Getting Started
- New Customer Portal Overview and Onboarding
- Interconnecting with SIP.US
- Check SIP Trunk Registration Status
- Setting Up Outbound Calling
- Setting Up Caller ID and STIR/SHAKEN
- CNAM Explained and How to Set Up
General Information
- Know Your Customer (KYC)
- Call Failover Options
- E911 - Important Information
- How to Set Up IP Authentication
- SIP Glossary of Terms
- How to Forward All Calls for a DID to an External Number
Troubleshooting Guides
- Failed Calls Troubleshooting with SIP.US Technical Support
- SIP Trunk Registration Connection Issues
- Inbound Calls are Failing
- Calls Showing Up As Scam Likely & Potential Spam
- Direct Media Delivery and Missing Audio
- Cannot Place International Calls
Messaging (SMS)
- About A2P/10DLC
- FAQ For 10DLC Submissions
- Messaging Glossary of Terms
- 10DLC Brand & Campaign Approval Essentials
- Messaging Setup Process and Expectations
- SIP.US Messaging Service Policies
Billing
- Accepted Payment Methods and Fees
- Change SIP Trunk Maximum Call Cost
- Check International and Per-Minute Outbound Rates
- Configure Auto Replenish and Low Balance Notifications
- How to Add/Edit a Payment Method
- Set Up ACH Withdrawal Payment Method
Porting
- How to Submit a Port Request
- Common Port Request Rejections
- Porting Glossary of Terms
- Where to Set Port-Out and Account PIN
- Porting Department Holiday Schedule 2026
- How to Port Out Numbers