Polycom SpectraLink 8020 Administration Manual page 135

# a call is put on hold.
# PROXYn_HOLD_IP0 is not required for current versions of Asterisk.
# For older PBXs that require this, set this to enable
#PROXYn_HOLD_IP0 = enable
#-----------------------------------------------------------------------------------------#
# PROXYn_PRACK enables ACK'd provisional responses to INVITE requests.
# mechanism will be used if this switch is enabled and the Proxy server specifies
# support for the PRACK mechanism.
# Asterisk, but is to be supported on subsequent versions.
# required on local area networks.
#PROXY1_PRACK = disable
#-----------------------------------------------------------------------------------------#
# PROXYn_KEEPALIVE_SECS specifies that the phone should send Keep Alives to the
# PROXYn server. It can be set to 0 or anywhere from 10 to 3600 seconds.
# The default value (which is applied if no parameter is supplied in this file) is
# 0 which means the phone will not send keep_alives to PROXYn.
#
# If the phone failes to get a keepalive response within the SIP 32 second
# timeout, the keepalives are terminated for that PROXY until the next successful
# registration to the PROXY.
#
# This parameter is REQUIRED on Asterisk Business Edition with the Polycom 8002
# phone. For Polycom 8020/8030 phones, this parameter is required when they are
# operating in WI-FI standard QoS mode. This is because Linux, the OS running Asterisk,
# has a ARP Cache flushing mechanism. This feature serves to refresh the ARP Cache for the 8002
phones.
# For 8020 and 8030 phones, operating in SVP mode ARP Cache is refreshed by the SVP server.
# If the phones are operating in standard based QoS method ARP cache refresh has to be done by
phone.
#
# The value of this parameter for phones should be just less than the
# minimum ARP Cache flushing time on the Linux box running Asterisk.
# this minimum flushing time is 15 seconds, so the parameter needs to be set for
# 14 seconds or less.
# what this minimum value is, however 14 seconds should work fine.
#
# The lower this setting, the more the impact on the phone's standby battery life.
# (8002 phones running version 130.003 and earlier code ignore this parameter if
# present)
# 8020/8030 phones running version 131.017 and earlier code ignore this parameter if
# present)
#PROXY1_KEEPALIVE_SECS=14
#-----------------------------------------------------------------------------------------#
# PROXYn_REREG_SECS specifies the re-registration interval for a PROXY.
# is the requested expiration interval sent in the REGISTER request message.
# be set to anything between 35 and 3600 seconds.
# The default value (which is applied if no parameter is supplied in this file) is
# 3600 which means the phone will attempt to register every 3580 seconds, if the
# server's response interval doesn't take precedence (see below).
#
# If the server has a lower maximum setting or a higher minimum setting that
# this value then the server's response will take precedence and this parameter
# will be ignored.
#
# The phone will always attempt to re-register with the PROXY 20 seconds prior to
# the expiration interval.
PN: 1725-36038-001-L.doc
PRACK is NOT SUPPORTED in current versions of
For other Linux Distributions, you may have to determine
Thus, if this parameter is set to 35 seconds, and the
Sample SIP Configuration Files
The PRACK
PRACK should not be
For Redhat
This
It can
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