On holidays or year-end occasions, at one given point a large number of mobile users may send messages or make phone calls, leading to of mobile networks being overloaded. Some message sending tips may prove helpful.
Technically, messages will be first transmitted to the message operating network, called the switchboard, via a wireless systems then delivered to the receiving mobiles in the reserve way.
Thus, the message is not delivered when one of the transmitting lines is blocked. The following tips may help.
Firstly, make sure the messaging parameters on your mobile phone are set correctly. Otherwise, your message won’t be sent or the network is much more overloaded for it must process the invalid ones.
VinaPhone message center number is +8491020005 and Mobifone is +84900000012.
Secondly, the "Reply via same center" on Nokia products or "Direct reply" on Siemens phones modes must be turned off.
With this turned on, users are still able to send messages. However, the receivers can not send back answers with the "Reply" mode in their own mobiles.
Besides, it is better for users to switch off the "Delivery reports" mode so that the network doesn’t have process more messages.
Also, avoid sending message in crowded places.
On some modern mobile phones, users can write long messages of over 1,000 characters. However, limit your message to a standard one of 160 characters.
The reason is that the network will divide your trailing message into many short ones, transmit them all, and then automatically combine them again in the receiving mobile. Accordingly, senders should avoid sending multimedia messages.
Finally, in general if you unfortunately fail to send your message, don’t send it again immediately, but be patient and wait for about 5-10 minutes.