Patrick Kuo 258b562e16
set network registration poll interval via http cache control header (#434) (#2445)
* set network registration poll interval via http cache control header from the server side

* default poll interval to 10 seconds if cache header not found

* address PR issues

* address PR issues

(cherry picked from commit dca8699)
2018-02-01 15:18:53 +00:00
..