Helix Telecom has begun a infrastructure modernization project in August, 2026. Documentation, links, instructions and processes related to provisioning equipment, customer portal, voicemail portal, ticket management, SMS, MMS, Fax, softphones, email communications may be incomplete or inaccurate. If you need updated documentation please sign into your account at https://fixmyphonesystem.com and submit a support ticket for assistance.

I am unable to hear a dial tone on my handset?

If your DP-710/715 handset is malfunctioning please remove all batteries from the handset for a period of 10 seconds the re-insert the batteries into the handset as you found them. You can find a video and images below. If you are still unable to make or receive calls using your DP-710/715 then disconnect power from the base unit for a period of 10 seconds before reconnecting power. It may take as long as 15 minutes for your base unit to provision.

Follow the images below in reverse to re-insert the batteries into the handset unit.