how to send a notification one device to another device in android?

Digi TransPort WR (Series)
,
1

i need code for sending notification one device to another device, that notification is also store into the database.

2

You still don’t make any sense.

What Digi TransPort router are you talking about?

http://www.digi.com/products/wireless-routers-gateways/enterprise-routers-vpn-concentrators/transportwrfamily

They do not run android.

What product are you talking about?