Hi AldoLinares,
I also test the BLF. However, it just working. The BLF status indicator are NOT in correct status at following scenario.
Grandstream BT-200: EXT 301
Polycom IP330: EXT 341
Grandstream GXP-2000: EXT 473 (BLF console)
Our testing:
1. EXT 301 issue call to EXT 341 (Both LED inidcator for 301 and 341 are
flash in Green color)
2. EXT 341 pick up the call (Both LED inidcator for 301 and 341 are in Red
color)
3. EXT 301 hang up the call (LED inidcator for 301 in Green color, LED
inidcator for 341 in Red color)
15:34:00.984 Call::Terminate [CM503008]: Call(32): Call is terminated
15:34:00.984 Call::Terminate [CM503008]: Call(32): Call is terminated
15:33:56.046 CallLeg:

nConfirmed Session 557 of leg C:32.1 is confirmed
15:33:55.890 CallCtrl:

nLegConnected [CM503007]: Call(32): Device joined:
sip:
[email protected]:5060
15:33:55.890 CallCtrl:

nLegConnected [CM503007]: Call(32): Device joined:
sip:
[email protected]:5060;transport=udp
15:33:55.875 MediaServerReporting::SetRemoteParty [MS210007] C:32.1:Answer
provided. Connection(direct): 10.1.1.19:2230(2231)
15:33:55.875 MediaServerReporting::SetRemoteParty [MS210001] C:32.2:Answer
received. RTP connection: 10.1.1.19:2230(2231)
15:33:55.875 CallLeg::setRemoteSdp Remote SDP is set for legC:32.2
15:33:54.718 Extension:

rintEndpointInfo [CM505001]: Ext.341: Device info:
Device Identified: [Man: Polycom;Mod: SoundPoint IP 330;Rev: General]
Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent:
[PolycomSoundPointIP-SPIP_330-UA/2.2.0.0047] Transport: [sip:10.1.1.10:5060]
15:33:54.718 CallCtrl:

nAnsweredCall [CM503002]: Call(32): Alerting
sip:
[email protected]:5060
15:33:54.484 MediaServerReporting::SetRemoteParty [MS210006] C:32.2:Offer
provided. Connection(direct): 10.1.1.23:5004(5005)
15:33:54.468 CallCtrl:

nSelectRouteReq [CM503004]: Call(32): Calling:
Ext:341@[Dev:sip:
[email protected]:5060]
15:33:54.468 CallCtrl:

nSelectRouteReq Making route(s) to
[sip:
[email protected]]
15:33:54.468 MediaServerReporting::SetRemoteParty [MS210000] C:32.1:Offer
received. RTP connection: 10.1.1.23:5004(5005)
15:33:54.453 CallLeg::setRemoteSdp Remote SDP is set for legC:32.1
15:33:54.453 Extension:

rintEndpointInfo [CM505001]: Ext.301: Device info:
Device Not Identified: User Agent not matched; Capabilities:[reinvite,
replaces, able-no-sdp, recvonly] UserAgent: [Grandstream BT200 1.1.5.15]
Transport: [sip:10.1.1.10:5060]
15:33:54.421 CallCtrl:

nIncomingCall [CM503001]: Call(32): Incoming call
from Ext.301 to [sip:
[email protected]]
Our finding is, if the caller hang up the
call first will cause the BLF status indicator in-correct stage. How about you?