41/1136.3.5 Q Result code suppressionCommand Descriptionset Q[0] transmit codesQ1 suppress codesMandatory. V.25ter section 6.2.5. Affects only result codes, not information responses.6.3.6 V DCE response formatCommand Descriptionset V[0] numeric V.25ter basic syntax result codes, limited headers andtrailersV1 verbose V.25ter basic syntax result codes, full headers and trailersMandatory. V.25ter section 6.2.6. For numeric result code values refer V.25ter section 5.7.1and D, A and O commands in this document. Command S3 and S4 settings affectheader/trailer formatting. Note that result codes defined in GSM 07.07 and 07.05 have onlyverbose values.6.3.7 X Result code selection and call progress monitoring controlCommand Descriptionset X[0] OK, CONNECT, RING, NO CARRIER, ERROR codes enabledX1 also CONNECT 1200, CONNECT 2400 enabledX2 same as value 1X3 also BUSY enabledX4 also NO ANSWER enabledX5 also CONNECT 4800 (or higher data rates), DELAYED, BLACKLISTED enabledMandatory. V.25ter section 6.2.7. When BUSY, NO ANSWER, DELAYED or BLACKLISTED isnot enabled, NO CARRIER is used instead. When CONNECT with a correct data rateis not enabled, a plain CONNECT is used instead. Also GPRS context activation is indicatedby CONNECT. This command does not affect the presentation of other result codes than theones mentioned in the table above.6.3.8 &C Circuit 109 (received line signal detector) behaviourCommand Descriptionset &C[0] always on&C1 normal operationMandatory. V.25ter section 6.2.8. Also known as DCD or carrier signal.