* Add SNMP configuration support for Grandstream HT801,HT802 and GXP2135 devices
Added configurable SNMP settings to Grandstream HT801, HT802 and GX92135 provisioning template. Includes enable/disable toggle, SNMP version selection (default v2c), and community string configuration. SNMP is disabled by default
for security.
* Update app_config.php
---------
Co-authored-by: Matthew Midgett <mmidgett@nationalwi-fi.com>