ADTRAN AOS Version R10.1.0 Command Reference Manual page 1149

Command Reference Guide Global Configuration Mode Command Set
forwards to the SIP server and how many REGISTER requests the unit will handle locally. SIP proxy user
REGISTER requests are forwarded by the unit if the time remaining in the REGISTER expiration period is
less than or equal to the REGISTER expiration period received from the SIP server minus the threshold
(defined by the threshold absolute <value> and threshold percentage <percentage> parameters) minus
the modified REGISTER expiration period forwarded to the SIP proxy user. All other REGISTER requests
from SIP proxy users are handled locally by the unit. For example, if the REGISTER expiration period from
the SIP server is 3600 seconds, the threshold is set to threshold absolute 180, and the REGISTER
expiration period in the modified REGISTER response forwarded to the user is 60 seconds, then the first
REGISTER request from the SIP proxy user that occurs after 3360 seconds (3600 - 180 - 60) will be
forwarded to the SIP server. Similarly, if the REGISTER expiration period from the SIP server is 3600
seconds, the threshold is set to threshold percent 10, and the modified Expires period in the REGISTER
response given to the user is 60 seconds, then the first REGISTER request from the SIP proxy user that
occurs after 3180 seconds (3600 - .10(3600) - 60) will be forwarded to the SIP server.
Usage Examples
The following example specifies a rate-adaption threshold of 10 percent of the Expires period from the SIP
server:
(config)#ip sip proxy register rate-adaption threshold percentage 10
60000CRG0-35E Copyright © 2012 ADTRAN, Inc. 1149