SER [Internet]; Aug 16, 2016 [cited 2016 Aug 16]. Available from: http://www.allacronyms.com/SER. 'SER', All Acronyms, 16 August 2016, <http://www.allacronyms.com/SER> [accessed 16 August 2016] All Acronyms, SER (Aug. 16, 2016, 12:08 AM), available at http://www.allacronyms.com/SER.
An International Driving Permit (IDP) is an international travel document, regulated by the United Nations, which allows you to drive in a foreign country. Yes, in many cases you will need an IDP to drive in a foreign country, other than the country where you are resident. It depends on bilateral agreements and treaties between the country where you are resident and the country, or countries, where you plan to drive.
SDP (Session Description Protocol) SDP (Session Description Protocol) is a set of rules that defines how multimedia sessions can be set up to allow all end points to effectively participate in the session. In this context, a session consists of a set of communications end points along with a series of interactions among them.