Chat history along with the message status will be synchronized across all user devices supported by Skype whenever the user signs in with the same Skype account.Although Skype allows sending SMS messages, it is not possible to receive SMS messages on Skype so users need a different way to receive responses to the messages they send using Skype.This fee can be as low as After 180 days of inactivity, a user's Skype Credit balance is deactivated; however, it can be reactivated.On 19 December 2006, Skype announced that there would be a new pricing structure in 2007.Skype users can call landline and mobile phone numbers (previously known as Skype Out) using Skype Credit or a calling subscription.Additionally, users can purchase a Skype Number (previously called Skype In and Online Number) that lets contacts call their Skype client from a landline or mobile phone.On special occasions, Skype introduces featured emoticons that are later either left as standard (anger), left as hidden (mooning) or removed (captain)..
Once user signs into Skype on a new device the conversation history is synced with Skype’s cloud and stored locally.
Skype Number (formerly called Online Number and until 2010 named Skype In) allows a Skype user to receive calls to their Skype client (on whatever device) dialed from mobiles or landlines to a Skype-provided phone number.
The number need not be in the same location as the user.
Skype allows users to remove or edit individual messages during one hour after sending; this affects messages already received by chat interlocutors as well as not delivered to them yet.
Skype allows users to delete all saved conversation histories for the device.