Polycom SoundPoint IP 300 Administrator's Manual page 99

Administrator's Guide - SoundPoint
Attribute
voIpProt.SIP.outboundProxy.transport
4.6.1.1.4.2 Alert Information <alertInfo/>
Attribute
volpProt.SIP.alertInfo.x.value
voIpProt.SIP.alertInfo.x.class
® ®
IP / SoundStation IP
Permitted
Values
DNSnaptr or
TCPpreferred
or
UDPonly or
TLS
Permitted
Values
string to com-
pare against
the value of
Alert-Info
headers in
INVITE
requests
positive
integer
Copyright © 2006 Polycom, Inc.
Default Interpretation
DNSnap If set to Null or DNSnaptr:
tr If voIpProt.SIP.outbound-
Proxy.address is a hostname
and voIpProt.SIP.outbound-
Proxy.port is 0 or Null, do
NAPTR then SRV look-ups
to try to discover the trans-
port, ports and servers, as
per RFC 3263. If voIp-
Prot.SIP.outbound-
Proxy.address is an IP
address, or a port is given,
then UDP is used.
If set to TCPpreferred:
TCP is the preferred trans-
port, UDP is used if TCP
fails.
If set to UDPonly:
Only UDP will be used.
If set to TLS:
If TLS fails, transport fails.
Leave port field empty (will
default to 5061) or set to
5061.
Note: TLS is not supported
on SoundPoint
500 phones.
Default Interpretation
Null Alert-Info fields from
INVITE requests will be
compared against as many of
these parameters as are spec-
ified (x=1, 2, ..., N) and if a
match is found, the behavior
described in the correspond-
ing ring class (refer to
Null
4.6.1.7.2 Ring type <ring-
Type/> on page 107) will be
applied.
Optimization
®
IP 300 and
91