ISUP message types

最新推荐文章于 2025-01-21 00:22:27 发布

大龄代码农民

最新推荐文章于 2025-01-21 00:22:27 发布

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文章标签： types table c

本文链接：https://blog.youkuaiyun.com/zblue78/article/details/4102733

本文列举了ISUP（综合业务数字网用户部分）中的各种消息类型及其对应的代码值。ISUP是电话网络中用于处理呼叫建立和释放等功能的重要协议。文中详细介绍了从初始地址消息到呼叫进度消息等关键信息。

/* ISUP message types. Q.763 table references in parenthesis. */ enum isup_msg_type { ISUP_IAM = 0x01, /* Initial address (32) */ ISUP_SAM = 0x02, /* Subsequent address (35) */ ISUP_INR = 0x03, /* Information request (31) */ ISUP_COT = 0x05, /* Continuity (28) */ ISUP_ACM = 0x06, /* Address complete (21) */ ISUP_CON = 0x07, /* Connect (27) */ ISUP_ANM = 0x09, /* Answer (22) */ ISUP_REL = 0x0c, /* Release (33) */ ISUP_SUS = 0x0d, /* Suspend (38) */ ISUP_RES = 0x0e, /* Resume (38) */ ISUP_RLC = 0x10, /* Release complete (34) */ ISUP_CCR = 0x11, /* Continuity Check Request (39) */ ISUP_RSC = 0x12, /* Reset circuit (39) */ ISUP_BLK = 0x13, /* Blocking (39) */ ISUP_UBL = 0x14, /* Unblocking (39) */ ISUP_BLA = 0x15, /* Blocking acknowledgement (39) */ ISUP_UBA = 0x16, /* Unblocking acknowledgement (39) */ ISUP_GRS = 0x17, /* Circuit group reset (41) */ ISUP_CGB = 0x18, /* Curciut group blocking (40) */ ISUP_CGU = 0x19, /* Curciut group unblocking (40) */ ISUP_CGA = 0x1a, /* Curciut group blocking acknowledgement (40) */ ISUP_CUA = 0x1b, /* Curciut group unblocking acknowledgement (40) */ ISUP_GRA = 0x29, /* Circuit group reset acknowledgement (25) */ ISUP_CPR = 0x2c, /* Call progress (23) */ ISUP_UEC = 0x2e, /* Unequipped CIC (39) */ };