FS-10540: add build for Allison sounds

docker/base_image/README.md

@@ -13,7 +13,7 @@ Used environment variables
 --------------------------
 
 1) ```SOUND_RATES``` - rates of sound files that must be downloaded and installed. Available values ```8000```, ```16000```, ```32000```, ```48000```. May defined multiply values using semicolon as delimiter. Example ```SOUND_RATES=8000:16000```;
-2) ```SOUND_TYPES``` - types of sound files that must be downloaded and installed. Available values music, ```en-us-callie```, ```ru-RU-elena```, ```en-ca-june```, ```fr-ca-june```, ```pt-BR-karina```, ```sv-se-jakob```, ```zh-cn-sinmei```, ```zh-hk-sinmei```. Example ```SOUND_TYPES=music:en-us-callie```;
+2) ```SOUND_TYPES``` - types of sound files that must be downloaded and installed. Available values music, ```en-us-callie```, ```en-us-allison```, ```ru-RU-elena```, ```en-ca-june```, ```fr-ca-june```, ```pt-BR-karina```, ```sv-se-jakob```, ```zh-cn-sinmei```, ```zh-hk-sinmei```. Example ```SOUND_TYPES=music:en-us-callie```;
 3) ```EPMD``` - start epmd daemon, useful when you use mod_erlang and mod_kazoo FreeSwitch modules. Available values ```true```, ```false```.
 
 Usage container