How to Subscribe:
- To subscribe to this service type *400*1# then press call.
- To unsubscribe to this service type *400*0# then press call.
To activate Hadher service you should subscribe to Wainak Service.
Hadher is a free service available to Omantel Mobile subscribers to notify your callers that you are back on the network. A notification message will be sent to all the callers once your phone is switched back on. For example, if your mobile phone is out of coverage or switched off and someone tries to call you, they will get a message when you are available again.