[Asterisk-Dev] MGCP dropped calls

[Alejandro Vargas]

I'm using mediatrix mgcp devices (mediatrix 1102) without problems
with asterisk at home
2.0 over the LAN. But now I'm trying one of this devices through
internet. My first problem was nat, but I decided to leave this problem
for later and try it through a vpn. I used gvpe because it is very
transparent. The device connects ok but in many cases (I suspect when
the bandwidth is low) the call is droped after a few seconds with a
message like this:

No command found on [192.168.0.105] for transaction 404. Ignoring..

The number (404 in this case) is variable. Isee with etereal that
Asterisk is sending a message of RQNT 404 aaln/1@[192.168.0.105] MGCP
1.0 and the device responds 200 404 OK, but following this, the
asterisk server starts rejecting the packets of the port it were using
to communicate to the device.

--
Alejandro Vargas