AirPrime and HL7548 AT Commands Interface Guide Rev10 0

Table Of Contents
4116303 Rev 10.0 August 10, 2017 20
AT Commands Interface Guide
Introduction
1.4.2. HL7548
PDP context IDs (CIDs) are designed with the following purposes:
CID=1 with APN=Itemobile.apn is reserved for IMS in Rogers (reserved by LTE protocol stack)
CID=5 is reserved for Sierra Wireless AirVantage (AVMS)
Note that CID=1 is locked by AT+HBHV=2 (PDP context related AT commands return error
response).
Caution: Failed activation attempts (+CGACT, DUT, etc.) due to invalid/incorrect APN blocks the
corresponding CID from further attempts until data retry condition releases PDP context blocking.
1.5. SMS Commands
SMS is sent over IMS in the Verizon network using 3GPP2 SMS PDU format and protocol. Generally,
3GPP AT commands do not work with 3GPP2 SMS, but additional support is added in the HL7518
and HL7548 to convert input SMS from 3GPP format to 3GPP2 format. This allows the use of 3GPP
AT commands like +CMGS, +CNMI and +CMGD to send, show or delete SMS messages as if the
SMS is sent, received or stored in 3GPP SMS PDU format.
However, +XCMGS3GPP2 and +XCMT3GGP2 are still available for sending and receiving SMS
messages in 3GPP2 SMS PDU format.
1.6. Document Modification
The commands described in this document are only to be used for usual AT commands use.
The information provided for the commands are subject to change without notice.
1.7. Abbreviations
Abbreviation
Definition
ACM
Accumulated Call Meter
ADC
Analog Digital Converter
ADN
Abbreviated Dialing Number (Phonebook)
AMR
Adaptive Multi-Rate
AMR-FR
AMR Full Rate (full rate speech version 3)
AMR-HR
AMR Half Rate (half rate speech version 3)
AOC
Advice Of Charge
APN
Access Point Name
ARN
Address Resolution Protocol
ARFCN
Absolute Radio Frequency Channel Number
ASCII
American Standard Code for Information Interchange
AT
ATtention; Hayes Standard AT command Set
BCCH
Broadcast Channel
BER
Bit Err Rate