AirPrime and HL7548 AT Commands Interface Guide Rev10 0

Table Of Contents
4116303 Rev 10.0 August 10, 2017 19
AT Commands Interface Guide
Introduction
1.3. Unsolicited Result Codes (URCs)
Unsolicited result codes (URCs) are sent simultaneously to all the channels (USB/UART) configured
in AT commands mode.
URCs are not sent to channels configured in Data/NMEA/Traces modes.
In sleep mode URCs wake up the module and are sent to the AT commands channels.
1.4. PDP Context Usage
1.4.1. HL7518
PDP context IDs (CIDs) are designed with the following purposes:
CID=1 with APN=VZWIMS is reserved for IMS in Verizon (SMS over IMS)
CID=2 with APN=VZWADMIN is reserved for Verizon Administration (SIM provision, OMADM,
etc.)
CID=3 with APN=VZWINTERNET is the default Internet APN in Verizon
CID=4 with APN=VZWAPP is the default application APN in Verizon
CID=5 is reserved for Sierra Wireless AirVantage (AVMS)
Note that:
CID=1 to CID=4 are managed by Verizon OMADM administration. These APNs may be
updated by the VZW OMADM server, e.g. after server’s initialized DM session, or after a SIM
card change.
CID=3 to CID=10 are intended for customer use if another APN/PDP context is needed (e.g.
APN for private network). Note that:
CID=3 or 4 may be updated by the VZW OMADM server
CID=5 is reserved for AVMS, but can be used by customer if AVMS feature is not used
It is recommended to use CID=6 to CID=10 in customer application if another APN/PDP
context is needed
CID=11 to CID=20 are disabled (related AT commands return error response) as maximum
PDP context (APN parameter list) is 10 entries for Verizon data retry restriction. These CIDs
can only be used properly provided that their IP-type and APN are the same as one
configured in CID=1 to CID=10.
CID=1 or 2 and CID=11-20 are locked by AT+HBHV=2 (related AT commands return error
response).
Caution: Two failed activation attempts (+CGACT, DUT, etc.) due to invalid/incorrect APN blocks the
corresponding CID from further attempts until the module reboots, due to Verizon data retry
restriction. If the CID is blocked, AT+CGACT returns +CME ERROR: 4 until the module reboots.