Islamabad, Oct 1 (IANS) As violence grips several parts of Pakistan, including the restive provinces of Balochistan and Khyber Pakhtunkhwa (KP) bordering Iran and Afghanistan, Speaker Sardar Ayaz Sadiq has summoned the joint session of the National Assembly (lower house) and the Senate of Pakistan (upper house) on Wednesday where the Chief of Army Staff (COAS) General Syed Asim Munir and heads of various intelligence agencies will give an in-camera briefing on various matters of national security.