Zultys ZIP2x2 User Manual

C. Configuration Files
141
C.4.2.1 Mandatory Fields
The proxy_addr parameter must be set in order for the phone to send SIP address through the
proxy server. The proxy server receives SIP requests from the phone and forwards them to the
next intermediate device in the network. This parameter sets the address of the proxy server for
the phone and provides no meaningful default if it is omitted from the configuration files.
C.4.2.2 Sample Configuration File
Figure C-6 displays the SIP settings section from a sample configuration file.
rtp_start_port Specifies the starting port number for RTP/RTCP
transmissions. Valid settings range from 1026 to 64528. The
starting port must always be an even number. Should not
be set to same value as phone_sip_port or proxy_port.
Default value is 33000.
section 8.5.3.4 on
page 111
session_expires Specifies the timeout period, in seconds, that the phone
transmits or receives a RE-INVITE that refreshes a session
that is still in progress. Valid settings include all positive
numbers. Recommended value is 3600.
Default value is 3600.
None
sip_invite_retrans Specifies number of unsuccessful INVITE retransmissions
before phone switches to backup proxy. Valid settings
range from 1 to 6.
Default value is 6.
section 8.5.3.7 on
page 112
sip_non_invite_retrans Specifies number of unsuccessful retransmissions (other
than INVITE) before phone switches to backup proxy. Valid
settings range from 1 to 10.
Default value is 10.
section 8.5.3.8 on
page 112
subscription_expires Specifies time period, in seconds, after which a SUBSCRIBE
expires. This value is inserted into the Expires header field.
Valid settings include all positive numbers. Recommended
value is 3600.
Default value is 3600.
None
validate_sip_msg When enabled, the phone verifies the IP address, device ID,
and port number of any SIP messages that it receives.
Valid settings are ‘yes’ and ‘no’:
‘yes’ - enables option
‘no’ - disables option
Default value is ‘yes’.
section 8.5.3.9 on
page 112
voice_mail_uri Specifies the name or extension of the voice mail server
Default value is voice.mail
(default uri is *86).
section 8.5.5.3 on
page 116
Parameter Description
Description of
equivalent
menu or button
command
Figure C-5 SIP Configuration Parameters (Continued)

Zultys ZIP2x2 Specifications

General

Brand	Zultys
Model	ZIP2x2
Category	IP Phone
Language	English