A signal corps is a military branch, responsible for military communications (signals). Many countries maintain a signal corps, which is typically subordinate to a country's army.
Military communication usually consists of radio, telephone, and digital communications.
Asia
Rejimen Semboyan Diraja, Malaysian Royal Signals Regiment
Indian Army Corps of Signals, raised in 1911. Pakistan Army Corps of Signals, raised in 1947. Singapore Armed Forces Signals Formation Sri Lanka Signals Corps Israeli C4I Corps Korps Perhubungan TNI AD (Indonesian Army Signal Corps) Armed Forces of the Philippines Signal Corps Signal Department, Royal Thai Army
Australia
Royal Australian Corps of Signals
Royal New Zealand Corps of Signals
Europe
Arma delle Trasmissioni, corps of Italian Army founded in 1953, see List of units of the Italian Army. Royal Corps of Signals, founded in the United Kingdom (under the name Telegraph Battalion Royal Engineers) in 1884. Communications and Information Services Corps (CIS), the signals corps of Ireland's Defence Forces. Communication and Information Systems Groups (CIS) of the Belgian Armed Forces, before: Transmission Troops Signal Brigade, a unit of the Serbian Armed Forces. Telegrafregimentet, Royal Danish Signal Regiment. Sambandsbataljonen in the Brigade Nord of the Norwegian Army Regiment Verbindingstroepen, a regiment of the Royal Netherlands Army. Fernmeldetruppe of Bundeswehr, before: Signal Corps of the Wehrmacht and Waffen SS. Signal Communications Troops of Russia. Signal Corps (French Army). Viestirykmentti, Signal Regiment of the Finnish Army. Swedish Army Signal Troops.