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    LTE Modem Registration Issue

    Cellular Modems
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    • Chuck BokathC
      Chuck Bokath
      last edited by

      Hi, I have a modem that would only connect with UMTS initially, I figured the SIM wasnt provisioned to receive LTE services from ATT. I called ATT and they provisioned the SIM with the IMEI of the modem. I dont know if there is PDP context or some other AT command I need to get a data connection up and going. Any ideas? Thanks in advance!

      The status and LTEinfo commands are pasted below.

      connect: Network is unreachable
      AT!GSTATUS?
      !GSTATUS:
      Current Time: 71 Temperature: 47
      Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
      Reset Counter: 8 Mode: ONLINE
      System mode: LTE PS state: Not attached
      IMS reg state: NOT REGISTERED IMS mode: Normal
      IMS Srv State: NO SMS,NO VoIP
      LTE band: B12 LTE bw: 10 MHz
      LTE Rx chan: 5110 LTE Tx chan: 23110
      LTE CA state: INACTIVE
      EMM state: Deregistered Attach Needed
      RRC state: RRC Idle

      PCC RxM RSSI: -93 RSRP (dBm): -137
      PCC RxD RSSI: -69 RSRP (dBm): -99
      Tx Power: 0 TAC: 2C09 (11273)
      RSRQ (dB): -13 Cell ID: 0B33780F (187922447)
      SINR (dB): 2.8

      OK
      AT!LTEINFO?
      !LTEINFO:
      Serving: EARFCN MCC MNC TAC CID Bd D U SNR PCI RSRQ RSRP RSSI RXLV
      5110 310 410 11273 0B33780F 12 3 3 4 87 -12.1 -99.5 -70.7 26

      IntraFreq: PCI RSRQ RSRP RSSI RXLV
      87 -12.1 -99.5 -70.7 26
      340 -14.2 -102.5 -79.7 26

      InterFreq: EARFCN ThresholdLow ThresholdHi Priority PCI RSRQ RSRP RSSI RXLV

      GSM: ThreshL ThreshH Prio NCC ARFCN 1900 valid BSIC RSSI RXLV

      WCDMA: UARFCN ThreshL ThreshH Prio PSC RSCP ECN0 RXLV

      CDMA 1x: Chan BC Offset Phase Str

      CDMA HRPD: Chan BC Offset Phase Str

      OK

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      • tomT
        tom admin
        last edited by

        @Chuck-Bokath Are you using an LTE v1 or v2 modem? Are you using voxl-modem in order to connect to the network?

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