VTech CTM-S2116 User Manual page 22

Question
I cannot dial out.
The Speed Dial key does not work at all.
The telephone cannot register to the SIP
network server.
The LOW BATTERY icon
of the cordless handset screen.
appears at the top
EN - 22
Suggestions
• Try all the above suggestions.
• A prefix may be required for dialing some
internal or external calls. Refer to the SIP
Phone Configuration Guide for details.
• Check your SIP server settings. If other
SIP telephones in your hotel are having
the same problem, the problem is in the
wiring or network server. Contact your
telephone service provider (charges may
apply).
• The Speed Dial key may not be properly
programmed. Refer to the SIP Phone
Configuration Guide for details.
• Make sure your network is providing
Power over Ethernet (PoE).
• Make sure the initialization and system
registration process completes (page
15).
• Disconnect the Cat-5 network cable from
the network wall jack and connect it back
into the network wall jack with Power over
Ethernet (PoE) to start the initialization
and system registration process again.
• Place the cordless handset in the handset
charger for recharging.
• Remove the battery and then install it
again, and use it until fully depleted.
Then charge the cordless handset in the
handset charger for up to
• If the above measures do not correct the
problem, replace the battery.
11 hours.