MT#4837 do not use static id for voip_preference_group

db_scripts/diff/15021.up

@@ -6,7 +6,7 @@ UPDATE voip_preferences SET
 WHERE attribute = 'sound_set';
 
 INSERT INTO voip_preferences VALUES(
-  NULL, 5, 'contract_sound_set', 'Customer Sound Set', 
+  NULL, (SELECT id from voip_preference_groups where name = 'NAT and Media Flow Control'), 'contract_sound_set', 'Customer Sound Set',
   1, 1, 1, 0, 0, now(), 0, 1, 'int', 0,
   'Customer specific Sound Set used for PBX auto-attendant prompts, customer-specific announcements etc.'
 );