Dialogic 6.2 Manuale Utente

Using Prompt Files

November 2009

59

2. Dial the phone number of the channel you selected. Make sure the 

phone line is attached to the selected channel.
The voice.c program does not indicate when to begin recording. 

Begin recording when the line goes off-hook (when you no longer 

hear ringing).

¾ Request that a channel (0 in the example) play back your 

1. At the system prompt, type:

voice -u 0 -p voice.ips

2. Dial the phone number of the channel. You should hear your 

recorded message.

Prompt files are infopkt files that contain many individual speech 

phrases in a single file. Each phrase is a partial or complete prompt 

in infopkt format followed by an INFOPKT_END_OF_SPEECH infopkt 

with mode value 1. The prompt file starts with an 
INFOPKT_PROMPT_MAP

 infopkt, which contains file offsets to each 

individual phrase. 

The Bfv API contains functions that open and close a Brooktrout 

prompt file and play individual phrases stored in it. For example, 

after an application opens a Brooktrout prompt file, it can call the 

BfvPromptPlay function to play any individual phrase, or it can 

call the BfvPromptPlay function multiple times to concatenate 

phrases and create a complete prompt. 

Using Brooktrout prompt files provides two advantages. Since all of 

the prompts are stored in a single file, tracking and maintaining 

prompts is easier. And because you can combine phrases to create 

complete prompts, you can reduce the amount of disk space needed 

for overall speech storage.