Attendant <Attendant - Polycom SIP 3.1 Administrator's Manual

Attribute
nat.ip
nat.signalPort
nat.mediaPortStart
nat.keepalive.interval
Attendant <attendant/>
Note
This configuration attribute is defined as follows:
Permitted
Values Default
dotted-decima Null
l IP address
1024 to 65535 Null
1024 to 65535 Null
0 to 3600 Null
These attributes are available on SoundPoint IP 320/330, 430, 550, 560, 600, 601,
650, and 670 phones only.
The Busy Lamp Field (BLF) / attendant console feature enhances support for
a phone-based attendant console.
Interpretation
IP address to advertise within SIP signaling - should
match the external IP address used by the NAT device.
If non-Null, this port will be used by the phone for SIP
signaling, overriding the value set for
voIpProt.local.signalPort in sip.cfg.
If non-Null, this attribute will be used to set the initially
allocated RTP port, overriding the value set for
tcpIpApp.port.rtp.mediaPortRangeStart in sip.cfg.
Refer to RTP <rtp/> on page A-62.
If non-Null (or 0), the keepalive interval in seconds. This
parameter is used to set the interval at which phones will
send a keep-alive packet to the gateway/NAT device to
keep the communication port open so that NAT can
continue to function as setup initially.
The Microsoft Live Communications Server 2005
keepalive feature will override this interval. If you want to
deploy phones behind a NAT and connect them to Live
Communications Server, the keepalive interval received
from the Live Communications Server must be short
enough to keep the NAT port open. Once the TCP
connection is closed, the phones stop sending keep-alive
packets.
Configuration Files
A - 121