Many secret back channels had been tried,
and some were eves used as a supplement to the Oslo channel.
During negotiation on mutual recognition an additional channel was operating between the israeli Arab Ahmad Tibi (presently adviser to Arafat) and Haim Ramon (former health and interior minister). This was a way for the sides to "double-check each other, posing questions and carrying messages between Rabin and Arafat (Abbas 1995;74-78; Inbar 1996 212-215.