Al Jazeera's Laurence Lee in Benghazi reports:
I don't think it's really the first time that they've said that they're open to negotiation. And clearly Gaddafi himself has already said that there have been two ceasefires, even though that turned out to be absolute lies.
"You have to remember that Mr Abdel Jalil was saying it in the presence of the United Nations special envoy to Libya, and the UN is calling repeatedly for a ceasefire, and so he had to acknowledge that to some degree. I think he was speaking partly to internal opinion in places like this, and the east of Libya, but he was also speaking to the international community, and I think the international community would agree entirely that if there is to be a ceasefire, it has to be accompanied as Jalil said by Gaddafi withdrawing his forces and ending the sieges, and the rocketing of towns like Misurata, which is under heavy attack again today.
"But the other thing you have to remember that he said, was that if there is no ceasefire then the rebels will press on to try to liberate all the Western town. So he is trying to play both sides at once, and this sense of sort of bravado still maintains here, but all the same, behind the scenes, you do get the sense that they're getting a little worried ... about the protracted stalemate.
"They've been in and around Brega and Ajdabiya now for days and days and days, neither side can push on, decisively. Here, there are worries that they might be running out of ammunition. And they are, I think, now trying to at least countenance the idea of different options. Because as time goes by, the military solution to this looks far less likely, and I think the political solution, if not inevitable, looks far more likely."
Asked whether defections by pro-Gaddafi officials were an indication of the direction in which the crisis is going, he said:
Part of the point is that clearly the outside world is it seems going cold on the idea of arming the rebels, there is too much disagreement in Western countries about whether practically or philisophically this is really a good idea. Here, at Friday prayers, every day, and every week now for the last few weeks, they've let off volleys ... of gunfire in celebration or defiance. Today, as of now, I've heard one bullet, fired off, and I think they're worried about what might happen if this does go on and they start to run out of ammunition.
"Equally, on the Gaddafi side of things ... you can see ... there's rumours about defections, and whether his sons want to get out, and whether Moussa Koussa, his foreign minister, is really in London to try to organise an exit strategy."
Lee says that there is a process of internal renegotiation ongoing on both sides, as they prepare themselves for what it appears to be a negotiated political settlement.