At a glance
The Callny G203 is the Callny G202 PLUS with a third tier of users. Same SMS protocol, same default password (1234), same 999-user capacity and one relay, plus call-only normal users, push alerts on relay actions and a relay delay of up to 9999 seconds.
Last reviewed:
What the G203 is
The Callny G203 is the sibling of the G202 PLUS. It is built on the same hardware platform and accepts the same Callny SMS command set, plus commands for normal users (NORTEL, NORPWD) and push notification users (PUSH, DELPUSH, PUSHALL).
Like the G202 PLUS, it is sold under multiple brand names — Callny, Daniu, LPSECURITY — but the firmware and command syntax are identical across rebrands. The default password is 1234; normal users use 0000.
How it works
Same as the G202 PLUS, with a third tier of users. A normal user, added with {pwd}#NORTEL{phone}#DEF#, can call to open the gate but cannot manage users. Up to 3 push users, added with {pwd}#PUSH{phone}#, get an SMS when the relay switches.
The relay is a dry contact, wired to the push-button input of your gate motor or barrier controller like the G202 PLUS.
What's in the box
- Callny G203 main unit
- GSM/4G antenna
- DC power pigtail
- Multilingual quick guide PDF
Quickstart setup
A 15-minute walkthrough to get the G203 from boxed to working. For the full guide with example SMS responses and error handling, see the G203 setup guide.
- Insert a SIM. Same prerequisites as the G202 PLUS — voice + SMS plan, PIN disabled.
- Power up. 9-36V DC, antenna connected outside any metal enclosure.
- Add yourself as super admin. Send 1234#TEL{phone}#DEF#.
- Change the password 1234. Send 1234#PWD{new-password}#PWD{new-password}#.
- Add a call-only user. Send {pwd}#NORTEL{phone}#DEF#.
- Test. Call the SIM from each authorized number and confirm the relay clicks.
GateOpener translates all these commands into a clean interface. Add users, change settings and open your gate without remembering a single code.
Download GateOpenerCommon issues and fixes
A normal user cannot add other users
That is by design: normal users (NORTEL) can only call to open. Add the number with {pwd}#TEL{phone}#DEF# instead if it should manage users.
NORTEL or PUSH returns an error
Normal users, NORPWD and the PUSH commands exist only on the G203. On a G202 PLUS, add every user with {pwd}#TEL{phone}#DEF#.
Hitting a problem not listed here? The full troubleshooting guide covers the seven most common failure modes in detail.
Frequently asked questions
What is the default password for the G203?
How many authorized phone numbers can the G203 store?
Does the G203 need a SIM card?
What manufacturers sell the G203?
Can I use the G203 with the GateOpener app?
Buying tips
- Only choose the G203 over the G202 PLUS if you need call-only normal users or push alerts. Otherwise the G202 PLUS does the same job and is slightly cheaper.
- Confirm the seller is shipping the PLUS-equivalent G203 (newer hardware) rather than an early non-PLUS revision.
Also sold as
Callny G203, Daniu G203, LPSECURITY G203. The G202 PLUS with normal users and push alerts.
