Polycom IP 320 Administrator's Manual page 189

Attribute
voIpProt.server.x.address
voIpProt.server.x.port
voIpProt.server.x.transport
Permitted
Values Default
dotted-deci Null
mal IP
address or
host name
0, Null, 1 to Null
65535
DNSnaptr or DNSnapt
TCPpreferre r
d or
UDPOnly or
TLS or
TCPOnly
Interpretation
IP address or host name and port of a SIP
server that accepts registrations. Multiple
servers can be listed starting with x=1, 2, ...
for fault tolerance.
If port is 0 or Null:
If voIpProt.server.x.address is a
hostname and
voIpProt.server.x.transport is set to
DNSnaptr, do NAPTR then SRV lookups.
If voIpProt.server.x.transport is set to
TCPpreferred or UDPOnly, then use 5060
and don't advertise the port number in
signaling.
If voIpProt.server.x.address is an IP
address, there is no DNS lookup and 5060 is
used for the port but it is not advertised in
signaling.
If port is 1 to 65535:
This value is used and it is advertised in
signaling.
Note: If the reg.x.server.y.address parameter
in Registration <reg/> on page
non-Null, all of the reg.x.server.y.xxx
parameters will override the voIpProt.server
parameters.
Note: The H.323 gatekeeper RAS signaling
uses UDP, while the H.225/245 signaling
uses TCP.
If set to Null or DNSnaptr:
If voIpProt.server.x.address is a
hostname and voIpProt.server.x.port is 0 or
Null, do NAPTR then SRV look-ups to try to
discover the transport, ports and servers, as
per RFC 3263. If
voIpProt.server.x.address is an IP
address, or a port is given, then UDP is used.
If set to TCPpreferred:
TCP is the preferred transport, 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.
If set to TCPOnly:
Only TCP will be used.
Configuration Files
A-134 is
A - 9