一个 Delphi 版本的 SIP 协议栈，实现了 SIP相关的很多 RFC 规范-a version of the SIP protocol stack, achieved many of the SIP RFC norms

一个 Delphi 版本的 SIP 协议栈-A Delphi version of the SIP protocol stack

栈、队列、列表、二叉树等数据结构,还不错-Easy classical data structures for Delphi 1-2 The EZDSL units provide an OOP interface for classical data structures for Delphi: stacks, queues, lists, binary trees and so forth. For programmers migrating from BP7 a TCollection