Casting full-round in standard action

[Dracazar]

Do you know anything allow to cast a full-round spell (like summons) in a standard action?

A Feat, a magic item, or something else.

Thanks

 

[Infiniti2000]

Does Rapid Spell from the Complete Divine help?

 

[Patryn of Elvenshae]

The Conjurer variant from AU / UA (whichever it is) can cast summoning spells as a standard action as opposed to a 1-round spell.

 

[Dracazar]

Your knowledge (d&d) is outstanding