Unfortunately, the Iprimus speedtouch 536 has the following problems and to overcome the issue, you will need to change the EXT SIP port to 5061 via your Linksys SPA-3102 to resolve your no dial tone issue.

• Port 5060 is blocked by Iprimus
• You cannot bridge the Iprimus Speedtouch 536 due to custom firmware upgrade
• You cannot telnet into your Iprimus Speedtouch 536

If you have any questions or concerns contact remote support for assistance