Wednesday, December 30, 2015

Busy Lamp Field (BLF) FAILS with Grandstream GXP2130 phones & Anveo service

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.
We have made Anveo aware of this defect. Unfortunately Anveo's management has shown zero interest in working with Grandstream to fix the problem. Since Anveo advertises BLF as working on one of their YouTube videos, we believe this to be false advertising on their part. View our demonstration video:

  Anveo-Grandstream BLF SMACKDOWN

Wednesday, December 9, 2015

Grandstream GXP-2130 firmware defect advisory



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.