ISMG

基本解释

ISMG makes a query to the tandem gateway (GNS), and by doing so gets the forwarding route messages between gateways.
互联网短信网关通过向汇接网关（GNS）查询的方式获得网关间的转发路由信息。
A CMPP_DELIVER operation is that ISMG delivers a message forwarded from SMSC or another ISMG to SP, which responds with a CMPP_DELIVER_RESP message.
CMPP_DELIVER操作的目的是ISMG把从短信中心或其它ISMG转发来的短信送交sp，sp以MPP_DELIVER_REsp消息回应。
The objective of a CMPP?_SUBMIT operation is that after SP has established an application-layer connection to ISMG it submits messages to ISMG.
注意:关于短信群发的问题，若SP对于群发消息不要求状态报告的回送时，才可以考虑群发，否则必须逐条发送。
Message defined as in 7.4.1.1 and 7.4.1.2.The Source_Addr is the source gateway code, being either the ISMG code or the GNS code.
消息定义同7.;4
CMPP?_TERMINATE operation is caused when, for some reason, SP or ISMG decides to terminate the current application-layer connection.
TERMINATE操作的目的是SP或ISMG基于某些原因决定拆除当前的应用层连接而发起的操作。