Member Avatar for kingsonprisonic

I need AT(ATtension) Commands for Mobile Easy Recharge. Currently i have using sim300_v7.02 gsm modem for my project. Now i need AT Command for Accessing the menu from sim. Also i need at commands for mobile easy recharge, easy recharge can be done through my sim card

  • 2 Contributors
  • 2 Replies
  • 227 Views
  • 7 Months Discussion Span
  • Latest Post Latest Post by rayidi

Dani AI

Generated

Short summary for (and following up on ): there are two viable ways to drive a recharge from a SIM300-based modem — talk to the SIM’s Toolkit (STK) menu if the SIM has a proactive app, or send the operator’s USSD/MMI recharge code. Both are supported at the AT layer on SIM300; which one works depends on the SIM/operator. (scribd.com)

If the SIM exposes a SIM Toolkit menu (the “Set‑Up‑Menu”), the SIM300 implements the SAT/STK AT commands you need: register a terminal profile with AT+STPD, wait for the unsolicited +STC: <cmdId>, fetch the proactive command with AT+STGC=<cmdId> and reply with AT+STCR=<cmdId>,<result>[,<data>]. To select a menu entry use AT+STMS=<item>[,help]. Example quick flow (interaction only):

AT+STPD=4,0000FFFF
<wait for> +STC: 01
AT+STGC=01
+STGC: 01,<data>
AT+STMS=2,1   ; select item 2 from menu
AT+STCR=01,00 ; terminal response OK

See the SIM300 AT command set for full types/encoding and terminal‑profile details. (scribd.com)

If the operator uses USSD/MMI recharge codes (common: *<service>*<pin>#), send them with AT+CUSD (and set the character set if needed). Example:

AT+CSCS="GSM"                 ; set charset
AT+CUSD=1,"*123*PIN#",15      ; start USSD session
(wait for +CUSD: ... response)
AT+CUSD=2                     ; cancel session when done

USSD responses use +CUSD and may require trying different DCS/charset values (some modems/networks use UCS2 vs GSM 7bit). (developers.soracom.io)

Practical notes: check SIM presence and network before testing (AT+CSMINS?, AT+CREG?, AT+CSQ) and test the same codes from a handset first. For production/bulk recharges, use an operator or aggregator API (Paytm/other B2B providers) — AT/USSD is fragile for scale and may be restricted by the MNO or on data/M2M SIMs. (scribd.com)

If you want, post which operator and a sample code you dial successfully on a phone; the exact AT+CUSD parameters or STK responses to send can then be trimmed to your SIM300 firmware. (stackoverflow.com)

Recommended Answers

All 2 Replies

Member Avatar for kingsonprisonic

sir i want a prepaid mobile recharge software the recharge software connect through gsm modem in gsm modem their is lapu ( demo ) sim of different operator of telecom player like airtel , idea vodafone etc .

Member Avatar for rayidi

You can try paytm.com for business partner. They are the instant mobile/dth recharge currently working fast & perfect in india.

Anyway according to my knowledge recharge from AT commands will not supports.

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.