Licensed voice show me DEMO

[macaruchi]

Hi!
I have installed a voice Miguel-8khz 5.0 and registered this voice but when I use the voice I am getting the message DEMO.
I have some time with this voice

root@vb-squezze:/var/lib/asterisk/agi-bin# swift --voices

Swift command-line synthesis program
Version 5.0.0 of March 2008
Copyright (c) 2000-2006, Cepstral LLC.

Voice | Version | Lic? | Gender | Age | Language | Sample Rate
-----------|---------|------|--------|-----|------------------|------------
Miguel-8kHz| 5.0.0 | Yes | male | 30 | Americas Spanish | 8000 Hz


Any help?

I use Asterisk 1.8, Swift2.0

Thks