SIP 402 Payment Required Error
The SIP 402 Payment Required error indicates that there is an issue related to billing or service availability on your telephony account. This typically means that the system cannot process calls due to financial or service restrictions.
Common Causes of SIP 402 Payment Required
- Insufficient balance in your PBX or VoIP account
- Disabled services required for calling or PBX operation
- Subscription or service plan limitations
- Billing or account restrictions imposed by the provider
Important Note
This error is not related to the Softphone.Pro license. If your license expires, you will see a different notification: “License key expired.”
How to Fix SIP 402 Payment Required
- Check your account balance and ensure sufficient funds are available
- Verify that all necessary services are active
- Review your тариф or subscription plan limitations
- Contact your VoIP provider to confirm account status
The SIP 402 Payment Required error is usually caused by billing or service restrictions. Resolving it typically requires checking your account status or contacting your telephony provider.