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Operational, Basic, and Advanced Parameters
A-67 41-001343-02 REV04 – 05.2014
Parameter –
sip registrar ip
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description The address of the registrar for which the IP phone uses to send REGISTER requests.
A SIP registrar is a server that maintains the location information of the IP phone.
A global value of 0.0.0.0 disables registration. However, the phone is still active and you
can dial using username@ip address of the phone.
If the Registrar IP address is set to 0.0.0.0 for a per-line basis (i.e, line 1, line 2, etc.), then
the register request is not sent, the "No Service" message does not display, and the mes-
sage waiting indicator (MWI) does not come on.
Format IP address or fully qualified Domain Name
Default Value 0.0.0.0
Range Not Applicable
Example sip registrar ip: 192.168.0.101
Parameter –
sip registrar port
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description The registrar's port number.
Format Integer
Default Value 0
Range Not Applicable
Example sip registrar port: 5060
Parameter –
sip backup registrar ip
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description The address of the backup registrar (typically, the backup SIP proxy) for which the IP
phone uses to send REGISTER requests if the primary registrar is unavailable.
A global value of 0.0.0.0 disables backup registration. However, the phone is still active
and you can dial using username@ip address of the phone.
If the backup registrar IP address is set to 0.0.0.0 for a per-line basis (i.e, line 1, line 2, etc.),
then the backup register request is not sent, the "No Service" message does not display,
and the message waiting indicator (MWI) does not come on.
Format IP address or fully qualified Domain Name
Default Value 0.0.0.0
Range Not Applicable
Example sip backup registrar ip: 192.168.0.102
Parameter –
sip backup registrar port
Configuration Files
aastra.cfg, <model>.cfg, <mac>.cfg
Description The backup registrar's (typically the backup SIP proxy) port number.
Format Integer
Default Value 0
Range Not Applicable
Example sip backup registrar port: 5060