IAX2 Link going down in one direction

@amartin13 wrote:

Hello all, I'm having a problem with my PBXs that are linked via IAX2.

I have two PBXs running Asterisk 11, and FreePBX 2.11. One of the PBXs is hosted by Amazon t1.Micro and a second is onsite. The goal being fault tolerance if the cloud PBX can't reach the onsite PBX it just takes a message and forwards the voicemail to the correct person. All outgoing and incoming calls from the sip trunking provider goes through the cloud PBX. The trouble is the link between the two PBXs stops working in the direction of cloud to onsite frequently. (every other day or so) The PBXs say the IAX2 trunk is still up, and running via the CLI, the on-site server can make outgoing calls via the cloud PBX, But, the incoming calls go to voicemail because the cloud PBX can't place a call to the on-site PBX. Rebooting the cloud PBX fixes the issue.

Peer Details: Cloud
host=OnsiteServerIP
username=200
secret=xxxx
qualify=yes
trunk=yes
type=friend
context=from-internal

Peer Details: Onsite
host=CloudServerIP
username=300
secret=xxxx
qualify=yes
trunk=yes
type=friend
context=from-internal

Any help or pointers would be greatly appreciated.

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