Cisco 7960G Administrator's Manual page 161

Appendix D Configurable Parameters for the SIP IP Phone
Table D-1
Parameter
dtmf_outofband
dyn_dns_addr_1
dyn_dns_addr_2
dyn_tftp_addr
Configuration File Parameters (continued)
Description
(Optional) Configures the out-of-band signaling (for tone detection
on the IP side of a gateway).
Note
Valid values are as follows:
•
•
•
Default is avt.
(Optional) IP address of a new dynamic DNS server. If a new DNS
server address is specified, it is used for any further DNS requests
after the phone uses the initial DNS address upon bootup. The DNS
addresses are used in the following order:
1.
2.
3.
4.
5.
6.
7.
The dynamic DNS address is not stored in flash memory. Only
dotted IP addresses are accepted. This value can be cleared by
removing it from the configuration file or by changing its value to a
null value " " or to "UNPROVISIONED."
Note
(Optional) IP address of a second dynamic DNS to be used for DNS
requests. See dyn_dns_addr_1 for more information.
(Optional) IP address of a new dynamic TFTP server. After initially
querying the default TFTP server, the phone rerequests the default
and phone-specific configuration files from the new TFTP server.
The dynamic TFTP server address is not stored in flash memory.
The number of dyn_tftp_addr values supported by the phone is
limited to prevent the phone configuration being downloaded
repeatedly from multiple TFTP servers. Only dotted IP addresses
are accepted. This value can be cleared by removing it from the
configuration file or by changing its value to a null value " " or to
"UNPROVISIONED."
The Cisco SIP IP phone supports out-of-band signaling
using the AVT tone method.
none—Do not generate DTMF digits out-of-band.
avt—If requested by the remote side, generate DTMF digits
out-of-band (and disable in-band DTMF signaling); otherwise,
do not generate DTMF digits out-of-band.
avt_always—Always generate DTMF digits out-of-band. This
option disables in-band DTMF signaling.
dyn_dns_addr_1 (if present)
dyn_dns_addr_2 (if present)
DNS Server 1
DNS Server 2
DNS Server 3
DNS Server 4
DNS Server 5
The dynamic DNS address is not stored in flash memory.
Cisco SIP IP Phone Administrator Guide, Release 6.x and 7.x
D-7