新特性1. Modified the GDMS Logo and updated the login page.2. Merged VoIP, UCMRC, CloudUCM systems to "GDMS Unified Communications". The bottom navigation menu was updated.3. Supported GCC models and CloudUCM service management via the mobile app.4. Added the ability to scan barcode or manually add PBX devices via the mobile app.5. Supported quickly logging in to the GWN.Cloud app without password.6. Optimized some functions and fixed some known bugs.