https://www.middleeasteye.net/news/full-text-iran-national-security-council-statement-ceasefire

...

In this regard, and according to the prudence of the Supreme Leader of the Islamic Revolution, His Eminence Ayatollah Seyyed Mojtaba Khamenei (May God protect him), and the approval of the Supreme National Security Council—and considering Iran and the Resistance’s upper hand in the battlefield, the enemy’s inability to carry out its threats despite all claims, and the formal acceptance of all the rightful demands of the Iranian people—it was decided that negotiations be held in Islamabad to finalise the details. This is so that within a maximum of 15 days, with the finalisation of details, Iran’s victory on the field shall also be consolidated in political negotiations.

...

Now, the honourable Prime Minister of Pakistan has informed Iran that the American side, despite all outward threats, has accepted these principles as the basis for negotiations and has surrendered to the will of the Iranian nation. Accordingly, at the highest level, it has been decided that Iran will engage in negotiations in Islamabad with the American side for a period of two weeks, based solely on these principles. It is emphasised that this does not mean the end of the war; Iran will only accept the termination of the war once the details—given the acceptance of Iran’s preferred principles in the 10-point plan—are finalised in the negotiations.

These negotiations will begin in Islamabad on Friday, April 10 (21 Farvardin), with complete distrust of the American side, and Iran will allocate two weeks for these talks. This timeframe is extendable by mutual agreement. It is essential that during this period, complete national unity be maintained and victory celebrations continue with strength.

...

If the enemy’s surrender on the battlefield is transformed into a decisive political achievement in the negotiations, we will celebrate this massive historical victory together; otherwise, we will fight side-by-side on the battlefield until all the demands of the Iranian nation are met. Our hands are on the trigger, and the moment the slightest error is committed by the enemy, it will be responded to with full power."

There's quite a lot more to it than that, but I've selected here the parts that make it clear that Iran is proposing 14 days of negotiations (potentially more, if the US and Iran agree they want more time) with the US in Islamabad, Pakistan.

The 'surrendered to the will of Iran' type language... they're referencing how they refused negotiations untill the Americans accept their 10 points as a basis for negotiations, how they refused many earlier attempts by the Americans to start such a ceasefire without consideration of all their terms.

They're basically being boastful and literally holier than thou, but thats rhetoric.

They at no point mention Israel being present at or party to the negotiations in Islamabad.

They also quite plainly say that they will continue to fight, if this falls through.

So... nobody has actually agreed to any of Iran's 10 points or the US's 15 points yet.

They've agreed that those sets of points represent acceptable starting conditions for an actual negotiation to begin... and that there should be a ceasefire in effect for the duration of these negotiations, between the US and Iran.

This is how... this kind of thing works. You each start with your sets of demands/conditions, then you work toward something that probably features some of both, some compromises, some concessions of your demands for some concessions of the opponent's demands... then hopefully both sides mutually agree to the deal.

Again they know the US isn't capable of reigning in Israel... they're not stupid, they know Israel will still be attacking them while these negotiations are occuring.

Now, if Iran believes the US has resumed attacking Iran, yeah that could blow this up, but if the US just sits tight, without Trump going insane again, or having another stroke, well, maybe something can be accomplished.