I have found that in configuring the UC500s, if I make a change to the Internet connection (even the SA500s on the WAN side of the UC500s), that it breaks the connection to the SIP trunk (which is not a surprise). Is the UC500 set to retry the SIP registration, and if so, how often?
In my typical deployment scenario, the Uc500 will likely be up and running prior to our Internet connection being established. I would like to be able to have the Uc520 keep trying to register (frequently) until registration occurs. If a break occurs, to attempt to reregister frequently. Is there a way to do this in CLI?
Seth - there is a slight twist to this - there is a REGISTER refresh timer (that Steve references) which is negotiated between UC500 and the SIP registrar as well. So even if you configure this on the UC500 to a lower value, it may not be honored by the SIP registrar and this may not help. Would talk to your SIP provider on this.
Another note, if the WAN is down & above registration refresh timer has expired, the UC500 retries the SIP REGISTER 6 times as default, at intervals of
0.5 sec, then 1 sec, 2 sec, 4sec, 4sec, 4sec. But if all of REGISTER fails, UC500 seems to wait for about 2 minutes and then retries again.
This last 2 minute timer is not configurable.
To restart registration instantly the best option (today via CLI, something we are looking to add to CCA):
I think thats the place....do a ? and see what it offers, but again, this is the timeout we suggest for registration. I am not sure the S.P. has its own value. In fact, look at the 200 OK and llok what they say..... Hmmmmm.... 300. SO our periodic refresh works for this..... I think you dont have to change anything....