The global messaging toolkit (GMT) is a set of ISUP features that enables applications to support ISUP variants without additional software changes from Dialogic.
Feature |
Description |
Raw messages |
Enables an application to send or receive complete ISUP messages and to support new messages without waiting for software updates from Dialogic. Any message type can be sent as a raw message. If this feature is enabled, inbound messages with a message type that the stack is not aware of can be sent to the application as a raw message. The first byte in the RAW structure is the message type, as the stack prepends the routing label. A few next state parameters are available if one of the new messages replaces some of the basic messages in an ISUP call, for example, WAIT_ACM. For more information, refer to ISUPRawReq. |
Extended elements |
Appends additional optional elements on the end of existing ISUP messages. This is useful for variants that can add new information elements to existing ISUP messages, often the IAM. This feature must be enabled and works for inbound unknown information element types. It can also be used to send additional parameters. Messages that do not have optional parameters in the specification definition cannot add these extended elements. For example, the RSC does not contain any optional parameters, so this feature cannot be used with an RSC. For more information, refer to the Information elements overview. |