Here is some debug from my sketch
OK[rdResp]: OK
[rdResp]: timed out
>> AT+NMGS=11,"48656c6c6f20576f726c64"
OK[rdResp]: OK
+NSMI: SENT[rdResp]: +NSMI: SENT
[rdResp]: timed out
>> AT+NQMGS
PENDING=0,SENT=36,ERROR=0[rdResp]: PENDING=0,SENT=36,ERROR=0
OK[rdResp]: OK
[rdResp]: timed out
>> AT+NUESTATS
"Signal power",-737[rdResp]: "Signal power",-737
"Total power",-673[rdResp]: "Total power",-673
"TX power",-70[rdResp]: "TX power",-70
"TX time",4721[rdResp]: "TX time",4721
"RX time",658691[rdResp]: "RX time",658691
"Cell ID",49702501[rdResp]: "Cell ID",49702501
"ECL",0[rdResp]: "ECL",0
"SNR",144[rdResp]: "SNR",144
"EARFCN",3747[rdResp]: "EARFCN",3747
"PCI",135[rdResp]: "PCI",135
"RSRQ",-108[rdResp]: "RSRQ",-108
OK[rdResp]: OK
[rdResp]: timed out