Cisco 7905G Administrator's Manual page 66

Additional SIP Services
Table 4-2 Additional SIP Services (continued)
SIP Service Description
Distinctive If an incoming INVITE contains an Alert-Info header
ringing support with the name Bellcore-dr1, Bellcore-dr2,
Bellcore-dr3, Bellcore-dr4, or Bellcore-dr5, the phone
will play the ring pattern r
specified in Bellcore GR506. If the Alert-Info header is
not present or if the ring pattern name is unknown, the
phone will play the default ring pattern Bellcore-dr1.
DNS SRV The Cisco IP Phone supports DNS SRV lookup for the
support SIP proxy server. If the Proxy parameter value is a
domain name, the phone performs a DNS SRV lookup
for the SIP proxy server. A DNS SRV lookup results in
one of the following conditions:
•
•
•
Hardware You can view Cisco IP Phone hardware information on
information the phone's Model Information menu and on the Device
Information area in a phone's web page.
Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
4-6
n
Zero host is returned or DNS SRV lookup failed.
The phone then performs a regular DNS A-record
lookup for the given name.
One host is returned. The single host is used as the
primary proxy farm.
Two or more hosts are returned. The two hosts with
the highest priorities are used as the primary and
backup proxy farms.
Chapter 4
, where n = 1, 2, 3, 4, or 5 as
Basic and Additional SIP Services
Reference
—
See the "SIP Parameters"
section on page 8-9.
See the "Model
Information Menu"
section on page 5-17
the "Device Information"
section on page 7-4.
OL-4277-01
and