
• UPDATE_USERS [YES | NO] affects the default user names stored in the IP Deskphone.
If this flag is configured as YES, the default user names are overwritten each time a new
device configuration file is downloaded.
- YES - the default user names are overwritten each time a new device configuration
file is downloaded.
- NO - the default user names are not overwritten each time a new device configuration
file is downloaded.
• SIP_PING [YES | NO] The SIP_PING configuration value is used to maintain server
heartbeat detection and to keep a firewall pinhole open.
When used for server heartbeat detection, the IP Deskphone periodically pings the SIP
Proxy and awaits a response. When three attempts to ping the SIP Proxy fail, the
IP Deskphone begins a failover process and attempts to connect to the next configured
SIP Proxy IP in the same domain.
When a NAT TRAVERSAL method is selected, the SIP_PING configuration value also
helps keep a firewall pinhole open.
Important:
Decide carefully whether SIP_PING usage is appropriate for your environment. Even
when SIP_PING is not used for NAT TRAVERSAL, it is highly likely that you must keep
SIP_PING enabled for server heartbeat detection.
If the IP Deskphone is behind a firewall, it is very likely that you must keep SIP_PING
enabled, unless an alternate method of keeping the firewall pinhole open is used.
The default value is YES if not specified in the device configuration file. If SIP_PING is
changed in the Device configuration file, the IP Deskphone must be rebooted for the
change to take effect.
- YES - enables pinging
- NO - disables pinging
Feature configuration commands
• TOVM_SOFTKEY_ENABLE [YES | NO]
- YES - enables the toVM soft key on the IP Deskphone.
- NO - disables the toVM soft key on the IP Deskphone.
• TOVM_VOICEMAIL_ALIAS <string> — customizes the user ID of the SIP URI of the
voice mail system.
Feature configuration commands
SIP Software for Avaya 1200 Series IP Deskphones-Administration January 2012 43
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