= Yealink Handsets on LTE Connections =

== Problem ==
 * LTE service has intermittant connection. Reconnects and gets different IP
 * Online Sip provider registration is not updated with new IP.

== Suggestions ==
Note this is not proven

 * On LTE router
  * Configure "unrestricted" APN. (Must be supported by upstream LTE Network Service)

 * On Yealink Phone
  * Configure "Account" "Advanced" "Keep Alive Type" "Notify"
  * Configure "Network" "NAT" "ICE" "Active" "Enabled"