TTS and ASR Failure in Case of the Normal MRCP Connection

If no service drive letter is specified for the TTS and ASR functions:
1. Query the mapped announcement playing drive letter on the U2990.
LST VOLCFG:;
If the following information is displayed, the announcement playing drive letter y: is not specified as the service drive letter for the TTS and ASR functions:
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Volume symbol  Volume index  Fileserver directory  Active file server index  Standby file server index  Specify as TTS/ASR service drive
y:             0             /share/vpshare        0                         255                         No                       
z:             0             /share/voice          0                         255                         No                       
(Number of results = 2)
2. Specify the announcement playing drive letter as the service drive letter for the TTS and ASR functions.
MOD VOLCFG: VOL="y:", VOLIND=0, ASRVOL=YES;
3. Restart the MSU board.
If the value of the P80 parameter is not 1:
1. Query the P80 parameter.
LST MPRM: MN=472, ID=P80;
If the following information is displayed, the U2990 connects to the TTS and ASR servers using the ISP protocol:
LST MPRM
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  Module number  =  472
  Parameter ID  =  80
Parameter Name  =  TTS ModeNON-MRCP/MRCP
  Value  =  0
(Number of results = 1)
2. Set the P80 parameter to 1 globally so that the MRCP protocol is used to connect the U2990 to the TTS and ASR servers.
MOD MPRM: ID=P80, VAL=1;
If the fault still persists, obtain help through the channels described in Help Channels.