Dropped Calls
23-365
Clients may perceive dropped calls as being an HFL
system fault, but most dropped calls are from cell
phone and cell phone carrier issues. The HFL system
does not directly handle the cell phone signal. It allows
the cell phone to transmit the cell phone audio over the
vehicle’s audio system.
Before troubleshooting for dropped calls, confirm the
cell phone settings:
• Disable Audio Answer. If Auto Answer is enabled,
incoming calls are routed to voice mail.
• Disable Always Ask/Trust, Authorize Device, or
similar setting, If these settings are enabled, each
time the HFL system attempts to link to the phone, the
phone will ask if you want to connect. If you do not
allow the connection, the HFL will not operate. The
phone must be set to Never Ask, Authorize Device,
etc. (based on the phone manufacturer and carrier)
for permission. Refer to the cell phone owner’s
manual for more information.
• Disable Flip Open to Answer. If this setting is enabled,
the phone must remain open in the vehicle. If it is
closed, the incoming calls are routed to voice mail.
Always confirm with the client if the number of dropped
calls is higher while using the HFL system as opposed
to using the cell phone only. Clients often confuse
problems with their phone or carrier as a problem with
the HFL system. The HFL system cannot control or
determine:
• Cellular connection quality.
• Signal strength.
• Cellular coverage.
• Ambient weather conditions that affect cellular
signals.
When a client complains about dropped calls, ask
questions about when or where the calls are dropped,
such as:
• Do you drive the same route on a regular basis?
• Does the call drop in the same location?
• Where do you keep your cell phone?
• Have you compared the number of dropped calls
using the HFL versus making calls from the handset?
• Does your phone have an antenna that needs to be
extended?
08/08/21 14:18:37 61SNR030_230_0368