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For the complete documentation index, see llms.txt. This page is also available as Markdown.

USSD features

USSD allows for messages with a maximum of 182 characters. However, due to differences in the minimum number of characters accepted by the Mobile Network Operators, we recommend you remain within 160 characters.

Clickatell offers two types of USSD messaging services:

  • Mobile-initiated interactive messaging (or USSD pull): This enables the customer to dial a number (e.g., *100#) to initiate a session via their handset. Information could also be displayed as a menu that the customer can respond to and interact with.

  • Network-initiated interactive messaging (or USSD push): This is when the session to the handset is initiated by the application. Similar to mobile-initiated, this information could be a menu that the customer can respond to and interact with.

USSD push is not available in Chat Flow yet.

These USSD messaging services are offered for all types of service codes.

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