Following over 4 months of troubleshooting with Grandstream engineers, it has been determined that the BLF feature does not work when using the Anveo virtual PBX system. The phones fail to display a correct aspect after being in use for a short period of time because the Anveo server uses an incorrect phone ID number when attempting to send a BLF NOTIFY packet to other phones.
YouTube videos, we believe this to be false advertising on their part.
View our demonstration video:
Anveo-Grandstream BLF SMACKDOWN
Wednesday, December 30, 2015
Wednesday, December 9, 2015
We have discovered that BLF does not work properly on the GXP2130 phones due to a SIP compliance issue with the phones. According to RFC 3265 (which governs SIP Event Notifications protocol) permits empty body NOTIFY body. This makes the phones not fully compliant with SIP standards. We would like to see this fixed with a firmware upgrade ASAP.