Short Message Using GSM7Bit Alphabet Fails Giving Error "MmxiSMPP Unsupported Alphabet: GSM7Bit Fallback to: GSM8Bit" for SMPP Adapter (Doc ID 1566432.1)

Last updated on SEPTEMBER 08, 2023

Applies to:

Symptoms

Messaging Manager can not send SMS (Short Message Service) when using its SMPP (Short Message Peer-to-Peer) adapter configured with a GSM7Bit alphabet.

THe following debug output can be seen in the /IN/service_packages/XMS/tmp/xmsTrigger.log file showing the GSM7Bit is not supported so uses the GSM8Bit alphabet instead.

The Messaging Manager Technical Guide - Chapter 3, Configuring the SMPP Adapter - states that GSM7Bit alphabet is allowed though.

Syntax: alphabet = "<charset>"
Description: Character set of the desired alphabet.
Type: String
Allowed: ...
              GSM7Bit
              GSM8Bit
              GSM7BitComp
              GSMBinaryComp
              GSMUCS2Comp
              ...

NCC documentation can be found by following Doc ID 1341844.1 - How to Download Oracle Communications Network Charging and Control (OCNCC/NCC) Documentation.

Messaging Manager documentation describes how to set the alphabet, depending on required message class (Store or Flash).  Example requirements may be:

1. DCS = 0  having message class 0 (Store SMS) should have 8bit coding.
2. DCS = F0 having message class 1 (Flash SMS) should have 7bit coding.

For more details, refer to Data Coding Scheme (DCS) section and Message Classes section of Global System for Mobile (GSM).

Changes

Cause

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