From the actual charter:
Article 7:…He must be prepared for the armed struggle and ready to sacrifice his wealth and his life in order to win back his homeland and bring about its liberation.
Article 9: Armed struggle is the only way to liberate Palestine. Thus it is the overall strategy, not merely a tactical phase. The Palestinian Arab people assert their absolute determination and firm resolution to continue their armed struggle and to work for an armed popular revolution for the liberation of their country and their return to it…
Article 10: Commando action constitutes the nucleus of the Palestinian popular liberation war. This requires its escalation, comprehensiveness, and the mobilization of all the Palestinian popular and educational efforts and their organization and involvement in the armed Palestinian revolution. It also requires the achieving of unity for the national (watani) struggle among the different groupings of the Palestinian people, and between the Palestinian people and the Arab masses, so as to secure the continuation of the revolution, its escalation, and victory.
(Bolding mine.) That’s the actual, official document. I think by now we can see that the peace between Wye & Camp David cited above was probably considered a “tactical phase”.