Cisco 7960G Administrator's Manual page 169

Appendix D Configurable Parameters for the SIP IP Phone
Table D-1
Parameter
timer_register_delta
timer_register_expires
timer_t1
timer_t2
tos_media
user_info
voip_control_port
Configuration File Parameters (continued)
Description
Configures the time interval at which reregistration will occur. This
is a numeric field in which the time interval is measured in seconds.
Valid values range from 32767 to 0. Default is 5 (phone will attempt
to reregister 5 seconds before its registration period expires).
(Optional) Amount of time, in seconds, after which a
REGISTRATION request expires. This value is inserted into the
Expire header field.
Valid values are any positive number; however, we recommend
3600. Default is 3600.
(Optional) Lowest value, in milliseconds, of the retransmission
timer for SIP messages.
Valid values are any positive integer. Default is 500.
(Optional) Highest value, in milliseconds, of the retransmission
timer for SIP messages.
Valid values are any positive integer greater than timer_t1. Default
is 4000.
(Optional) Type of service (ToS) level for the media stream being
used.
Valid values are as follows:
•
•
•
•
•
•
Default is 5.
(Phone-specific; optional) Configures the "user=" parameter in the
REGISTER message.
Valid values are as follows:
•
•
•
Default is none.
(Optional) UDP port used for SIP messages. All SIP REQUESTS
use voip_control_port as the UDP source port when nat_enable = 1.
Range is from 1025 to 65535. Default is 5060.
0—IP_ROUTINE
1—IP_PRIORITY
2—IP_IMMEDIATE
3—IP_FLASH
4—IP_OVERRIDE
5—IP_CRITIC
none—No value is inserted.
phone—The value user=phone is inserted in the To, From, and
Contact Headers for REGISTER.
ip—The value user=ip is inserted in the To, From, and Contact
Headers for REGISTER.
Cisco SIP IP Phone Administrator Guide, Release 6.x and 7.x
D-15