1# Telephony Error Codes 2 3> **NOTE** 4> 5> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](errorcode-universal.md). 6 7## 8300001 Input Parameter Value Out of Range 8 9**Error Message** 10 11The input parameter value is out of range. 12 13**Description** 14 15This error code is reported if the value of the input parameter (for example, **slotId**) is not within the valid range. In this case, the API call will fail and the corresponding operation cannot be performed. 16 17**Cause** 18 19The input parameter value is invalid. 20 21**Solution** 22 23Enter a valid parameter value. 24 25 26 27## 8300002 Service Connection Error 28 29**Error Message** 30 31Operation failed. Cannot connect to service. 32 33**Description** 34 35This error code is reported if the attempt to connect to a service fails. 36 37**Cause** 38 39Service startup or IPC connection has failed. 40 41**Solution** 42 43Operation error. Try again later. 44 45 46 47## 8300003 System Internal Error 48 49**Error Message** 50 51System internal error. 52 53**Description** 54 55This error code is reported if an internal error has occurred. 56 57**Cause** 58 59The possible cause is that data read/write has failed because the network is abnormal. 60 61**Solution** 62 63Operation error. Try again later. 64 65 66## 8300004 SIM Card Not Detected 67 68**Error Message** 69 70Do not have sim card. 71 72**Description** 73 74This error code is reported if no SIM card is detected. 75 76**Cause** 77 78No SIM card is inserted or the SIM card is not properly inserted. 79 80**Solution** 81 82Insert the SIM card or remove and insert the SIM card again. 83 84 85## 8300999 Unknown Error 86 87**Error Message** 88 89Unknown error code. 90 91**Description** 92 93This error code is reported if an unknown error occurs. 94 95**Cause** 96 97An unexpected error occurs in the system. The possible cause is that error codes of the bottom layer are not within the processing range. 98 99**Solution** 100 101Operation error. Try again later. 102 103 104## 8301001 SIM Card Not Activated 105 106**Error Message** 107 108SIM card is not activated. 109 110**Description** 111 112This error code is reported if the SIM card is not activated. 113 114**Cause** 115 116The SIM card is not activated. 117 118**Solution** 119 120Activate the SIM card. 121 122 123## 8301002 Failed to Read or Update SIM Card Data 124 125**Error Message** 126 127SIM card operation error. 128 129**Description** 130 131This error code is reported if the attempt to read or update SIM card data has failed. 132 133**Cause** 134 135The SIM card does not support the operation, or the SIM card is damaged. 136 137**Solution** 138 139Contact the SIM card supplier, or replace the SIM card. 140 141 142## 8301003 Incorrect SIM Card Configuration 143 144**Error Message** 145 146Operator config error. 147 148**Description** 149 150This error code is reported if the SIM card configuration is incorrect. 151 152**Cause** 153 154The configuration file delivered with the SIM card is not properly preconfigured. 155 156**Solution** 157 158Check whether the correct SIM card is inserted. 159 160## 8401001 Failed to Connect to the UT 161 162**Error Message** 163 164UT is not connected. 165 166**Description** 167 168This error code is reported if the UT is not connected. 169 170**Cause** 171 172The current carrier does not support sending of UT requests over a Wi-Fi network, but the device is connected to the Wi-Fi network. 173 174**Solution** 175 176Disconnect the Wi-Fi connection, and send a new UT request. 177