WMA to GSRT Converter
Create Grandstream IP phone ringtones from WMA
VoIP Ringtones
GSRT is what Grandstream phones need — turn WMA audio into custom ringtones.
Browser-Based
Create ringtones from any device — no VoIP tools needed.
Fast Conversion
Ringtone files are small — WMA to GSRT finishes in seconds.
How to convert WMA to GSRT
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose gsrt or any other format you need as a result (more than 200 formats supported)
Let the file convert and you can download your gsrt file right afterwards
About formats
Frequently Asked Questions
GSRT is the proprietary ringtone format for Grandstream IP phones. The phones reject non-GSRT audio files, so converting your WMA clip to GSRT is the only way to set a custom ringtone.
The GXP, GRP, and GXV series all accept GSRT files uploaded through the phone web interface. Check your model documentation for the exact ringtone upload path in the admin panel.
Grandstream recommends keeping ringtones under 30 seconds. Longer files may be truncated or rejected by the phone firmware, and shorter clips loop more naturally during an incoming call.
Access your phone admin panel via its IP address in a web browser, navigate to the ringtone settings section, and upload the GSRT file. The phone will store it and make it available in ringtone selection.
Yes — upload multiple WMA audio clips and Convertio produces a GSRT version of each simultaneously. Download them individually and upload each to your Grandstream phones as needed.