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Aptela Knowledge Base » Phones and Adapters » Softphones » Softphone Errors: 408

Softphone Errors: 408

The softphone will return a 408 error when something blocks the phone's ability to register.  Issues can stem from your ISP or your network device settings.  Before investigating with your ISP or making changes to your network settings, try the below troubleshooting steps.
Quick Checks
1. Go to the softphone's account settings.
2. Click the Account tab, and verify the below settings:
a. Under User Details section, make sure the Domain is a5prodsbc.aptela.com
b. Under the Domain Proxy section, make sure the box for Register with domain and receive calls is checked and that they are sent via Domain.
3. Next, click on the Advanced tab.
4. Check the box for use rport.
5. Click OK.
6. The phone should register.
Advanced Troubleshooting
If you still have issues, have your IT administrator try these advanced troubleshooting steps.
Make sure your router or firewall is properly configured.  Refer to our Router / Firewall Settings.
If your SIP device is placed behind an enterprise-level firewall, refer to our Firewall/Router NAT Issues.
 
If problems persist, submit a technical support ticket via our support page at www.aptela.com/support/technical-support .
The softphone will return a 408 error when something blocks the phone's ability to register.  Issues can stem from your ISP or your network device settings.  Before investigating with your ISP or making changes to your network settings, try our "quick checks" below.

Quick Checks

  1. Go to the softphone's account settings.
  2. Click the Account tab, and verify the below settings:
    • Under User Details section, make sure the Domain is aptela.com
    • Under the Domain Proxy section, make sure the box for Register with domain and receive calls is checked and that they are sent via Domain.
  3. Next, click on the Advanced tab.
  4. Check the box for Use rport.
  5. Click OK.
  6. The phone should now register.

Advanced Troubleshooting:

If you still have issues, have your IT administrator try these advanced troubleshooting steps.
  1. Make sure your router or firewall is properly configured.  Refer to our Router / Firewall Settings.
  2. If your SIP device is placed behind an enterprise-level firewall, refer to our Firewall/Router NAT Issues.
 
If problems persist, submit a technical support ticket via our support page at www.aptela.com/support/technical-support.

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