Hello all,

We have a sipx installation (4.0.4-017289 2009-11-19T18:15:29
ecs-centos5) running with multiple managed polycom stations (all
working correctly). I have added a new extension and registered a line
on a Sipura SPA-2002 ATA to connect to our sipx installation. When I
try to call a station via the ata I receive a 407 Proxy Authentication
Required error when watching a packet capture. Details and capture are
below - how do I get this ata working?

Thanks in advance,
Max

Working:
- Polycom can call ATA
- ATA can call PSTN through gateway
- ATA can call voicemail extension

Not Working:
- ATA cannot call Polycom

U 207.171.12.105:5060 -> 207.171.12.15:5060
 INVITE sip:[email protected] SIP/2.0..Via: SIP/2.0/UDP
207.171.12.105:5060;branch=z9hG4bK-89b1b247..From: 210
<sip:[email protected]>;tag=3c
 f723a7fdb2cb47o0..To: <sip:[email protected]>..Call-ID:
[email protected]: 101 INVITE..Max-Forwards:
70..Contact: 210 <sip:21
 [email protected]:5060>..Expires: 240..User-Agent:
Sipura/SPA2002-3.1.5..Content-Length: 426..Allow: ACK, BYE, CANCEL,
INFO, INVITE, NOTIFY, OPTIONS, REF
 ER..Supported: x-sipura..Content-Type: application/sdp....v=0..o=-
147523 147523 IN IP4 207.171.12.105..s=-..c=IN IP4 207.171.12.105..t=0
0..m=audio 164
 66 RTP/AVP 0 2 4 8 18 96 97 98 100 101..a=rtpmap:0
PCMU/8000..a=rtpmap:2 G726-32/8000..a=rtpmap:4 G723/8000..a=rtpmap:8
PCMA/8000..a=rtpmap:18 G729a/800
 0..a=rtpmap:96 G726-40/8000..a=rtpmap:97 G726-24/8000..a=rtpmap:98
G726-16/8000..a=rtpmap:100 NSE/8000..a=rtpmap:101
telephone-event/8000..a=fmtp:101 0-
 15..a=ptime:30..a=sendrecv..
#
U 207.171.12.15:5060 -> 207.171.12.105:5060
 SIP/2.0 100 Trying..From: 210
<sip:[email protected]>;tag=3cf723a7fdb2cb47o0..To:
<sip:[email protected]>..Call-Id: [email protected]
 1.12.105..Cseq: 101 INVITE..Via: SIP/2.0/UDP
207.171.12.105:5060;branch=z9hG4bK-89b1b247..Content-Length: 0....
#
U 207.171.12.15:5060 -> 207.171.12.105:5060
 SIP/2.0 407 Proxy Authentication Required..From: 210
<sip:[email protected]>;tag=3cf723a7fdb2cb47o0..To:
<sip:[email protected]>;tag=1098023
 2..Call-Id: [email protected]: 101 INVITE..Via:
SIP/2.0/UDP 207.171.12.105:5060;branch=z9hG4bK-89b1b247..Proxy-Authenticate:
Digest
  realm="cthought.com",
nonce="08d3c80aa6e2ed8cc2ff9064aa5aa80b4b7d8fa8"..Server:
sipXecs/4.0.4 sipXecs/sipXproxy (Linux)..Date: Thu, 18 Feb 2010
19:06:1
 6 GMT..Content-Length: 0....
#
U 207.171.12.105:5060 -> 207.171.12.15:5060
 ACK sip:[email protected] SIP/2.0..Via: SIP/2.0/UDP
207.171.12.105:5060;branch=z9hG4bK-89b1b247..From: 210
<sip:[email protected]>;tag=3cf72
 3a7fdb2cb47o0..To:
<sip:[email protected]>;tag=10980232..Call-ID:
[email protected]: 101 ACK..Max-Forwards:
70..Contact: 210
 <sip:[email protected]:5060>..User-Agent:
Sipura/SPA2002-3.1.5..Content-Length: 0....
#
U 207.171.12.105:5060 -> 207.171.12.15:5060
 INVITE sip:[email protected] SIP/2.0..Via: SIP/2.0/UDP
207.171.12.105:5060;branch=z9hG4bK-5ce2cf97..From: 210
<sip:[email protected]>;tag=3c
 f723a7fdb2cb47o0..To: <sip:[email protected]>..Call-ID:
[email protected]: 102 INVITE..Max-Forwards:
70..Proxy-Authorization:
  Digest 
username="210",realm="cthought.com",nonce="08d3c80aa6e2ed8cc2ff9064aa5aa80b4b7d8fa8",uri="sip:[email protected]",algorithm=MD5,response="0
 4a79d18eb650830af8dc2c0e8366698"..Contact: 210
<sip:[email protected]:5060>..Expires: 240..User-Agent:
Sipura/SPA2002-3.1.5..Content-Length: 426..Allow
 : ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, REFER..Supported:
x-sipura..Content-Type: application/sdp....v=0..o=- 147523 147523 IN
IP4 207.171.12
 .105..s=-..c=IN IP4 207.171.12.105..t=0 0..m=audio 16466 RTP/AVP 0 2
4 8 18 96 97 98 100 101..a=rtpmap:0 PCMU/8000..a=rtpmap:2
G726-32/8000..a=rtpmap:4
 G723/8000..a=rtpmap:8 PCMA/8000..a=rtpmap:18 G729a/8000..a=rtpmap:96
G726-40/8000..a=rtpmap:97 G726-24/8000..a=rtpmap:98
G726-16/8000..a=rtpmap:100 NSE/
 8000..a=rtpmap:101 telephone-event/8000..a=fmtp:101
0-15..a=ptime:30..a=sendrecv..
#
U 207.171.12.15:5060 -> 207.171.12.105:5060
 SIP/2.0 100 Trying..From: 210
<sip:[email protected]>;tag=3cf723a7fdb2cb47o0..To:
<sip:[email protected]>..Call-Id: [email protected]
 1.12.105..Cseq: 102 INVITE..Via: SIP/2.0/UDP
207.171.12.105:5060;branch=z9hG4bK-5ce2cf97..Content-Length: 0....
#
U 207.171.12.15:5060 -> 207.171.12.105:5060
 SIP/2.0 404 Not Found..From: 210
<sip:[email protected]>;tag=3cf723a7fdb2cb47o0..To:
<sip:[email protected]>;tag=c653eda7..Call-Id: 8d08d327
 [email protected]: 102 INVITE..Via: SIP/2.0/UDP
207.171.12.105:5060;branch=z9hG4bK-5ce2cf97..Record-Route:
<sip:207.171.12.15:5060;lr>..Use
 r-Agent: sipXecs/4.0.4 sipXecs/registry (Linux)..Date: Thu, 18 Feb
2010 19:06:16 GMT..Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS,
REGISTER, SUBSCRI
 BE..Accept-Language: en..Supported: gruu, path..Content-Length: 0....
#
U 207.171.12.105:5060 -> 207.171.12.15:5060
 ACK sip:[email protected] SIP/2.0..Via: SIP/2.0/UDP
207.171.12.105:5060;branch=z9hG4bK-5ce2cf97..From: 210
<sip:[email protected]>;tag=3cf72
 3a7fdb2cb47o0..To:
<sip:[email protected]>;tag=c653eda7..Call-ID:
[email protected]: 102 ACK..Max-Forwards:
70..Proxy-Authori
 zation: Digest
username="210",realm="cthought.com",nonce="08d3c80aa6e2ed8cc2ff9064aa5aa80b4b7d8fa8",uri="sip:[email protected]",algorithm=MD5,resp
 onse="50044ac3f73eebbe2a1b32c0267a11c8"..Contact: 210
<sip:[email protected]:5060>..User-Agent:
Sipura/SPA2002-3.1.5..Content-Length: 0....
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