Hosted Voice Response Layer

Synchronous

Synchronous Phone Port Application Layer (SPA_)

#include "spa.h"

void
SPA_vMsgDomainSet(String domain)

String
SPA_vMsgDomainGet(void)

SPA_PlayResult
SPA_vMsgPlayN(PP_PortDesc portDesc, String vMsg, Int nuDtmfs)

SPA_PlayResult
SPA_wordSeqPlayN(PP_PortDesc portDesc, String wordSeq, Int nuDtmfs)

SuccFail
SPA_dtmfWaitFor(PP_PortDesc portDesc, Int nuDtmfs, String dtmfTerms, 
Int wait, Char *buf, Char *bufEnd)

SuccFail
SPA_mfWaitFor(PP_PortDesc portDesc, Int nuDtmfs, String dtmfTerms, 
Int wait, Char *buf, Char *bufEnd)

SuccFail
SPA_dtmfGenerate(PP_PortDesc portDesc, String dtmfStr)

Asynchronous

Application Management (APP_)

A voice response application in VoRDE environment is a state table that is executed by PM_Machine. PP_ module can be used to assign a name to an application and to assign the application to one or more Phone-Ports.

Phone Port Machine (PM_)

PM_ module provides the service of dynamic creation of state tables and event driven execution of these state tables. Several state tables (Applications) may exist within a program (process). Each of these state tables may be associated with one or more Phone-Ports.

Sections 5.4.2 address the categories of services provided by the PM_ module.

Voice Response Finite State Machine

The PM_ state machine, takes as input the

the Phone-Port.

There is a PM_Machine associated with each Phone-Port. Each PM_Machine consists of:

- A Stack.
- Memory for static variables.
- State Information.

Generation of a State

PM_ states may dynamically be generated and linked together to generate state tables (Voice Response Applications).

A state is normally generated through a facility which has the form PM_genStateName. % 'StateName'% is the name of the desired state. For example to generate a state that would play a file, the user would:

    {
        PM_State *state;

        state = PM_genPlayN(0, "hello.vox");
    }

Linkage of States

A state table is a linked set of states. PM_States are linked together through PM_Events.

PM_addState facility is used to link two states together with an event.