PHP Asterisk Manager Interface ( AMI ) supports synchronous command ( action )/ responses and asynchronous events using the pattern observer-listener. It supports commands with responses with multiple events. It is very suitable for the development of operator consoles and / or asterisk / channels / peers monitoring through SOA, etc.
With MetaModel, you use a type-safe SQL-like API for querying any datastore. It is a data access framework providing a common interface for exploration and querying of different types of datastores. It isn't a data mapping framework. Instead, it emphasizes abstraction of metadata and the ability to add data sources at runtime, making MetaModel great for generic data processing applications, but less so for applications modeled around a particular domain.
CreditSuite is a suite of libraries that aims to provide an open source analytics and trading/valuation system solution suite for credit and fixed income products. To this end, it implements its functionality over three main libraries - CreditProduct, CreditAnalytics, and RegressionSuite.