0x2948 - SIP Notify Subscription State

Used in:
PPL Event Request message
PPL Event Indication message

Byte | Description
0, 1 | Tag 0x2948
2, 3 | Length Variable
4-n | Value [0] - Subscription State 0 - Terminated Value [1-2] - Retry-after Time duration in seconds after which the UA can retry the REFER request. . Max value is 0xFFFF (65535 seconds). 0x0000 - CSP would ignore this parameter. Value [3-102] - Reason code Reason for terminating the subscription. This is an optional field, with a variable length. Max length is 100 including the NULL terminator. 1 - Pending Value [1-2] - Expires Time duration in seconds after which the subscription expires. Max value is 0xFFFF (65535 seconds). 0x0000 - CSP would ignore this parameter. Value [3-102] - Reason code Reason for terminating the subscription. This is an optional field, with a variable length. Max length is 100 including the NULL terminator. 2 - Active Value [1-2] - Expires Time duration in seconds after which the subscription expires. Max value is 0xFFFF (65535 seconds). 0x0000 - CSP would ignore this parameter.

See Programmable Protocol Language.
A condition that, when met, drives a state machine from one state to another. A condition that drives a Component out of its current state by invoking an associated primitive.
The condition of a component at a given instant. The current "context" of a PPL object, such as Idle, Seizing, Answered. In PPL files, a State is represented by a circle.