[Serusers] Could SER-0.9 Be Crashing My ATAs?

[Java Rockx]

Hi All.

I'm using ser-0.9 with mediaproxy-1.2.0

We've been trying to track down a problem whereby different ATAs stop
working either partially or crash entirely.

We have a UTstarcom iAN-02EX with firmware 1.8.2.15a (released a few weeks ago).

When I telnet to the ATA and enable debug messages I see this:

Not a valid SIP request!
Error: Parse error...

The above error is generated everytime SER sends a UDP keep-alive
packet shown below:

23:35:21.494441 pcp02356144pcs.clbrtn01.fl.comcast.net.5060 >
ssvsoho137.smartcity.net.58317: udp 4 (DF) [tos 0x10]
0x0000   4510 0020 69c2 4000 4011 24ee 4454 f278        E...i. at .@.$.DT.x
0x0010   425a 32e6 13c4 e3cd 000c 5c37 0000 0000        BZ2.......\7....

Can anyone tell me if this is a SER issue or not?

Regards,
Paul