Ok, so your CDP and UDP domain names are "ChevyChase" and "Corporate"? If so, your SIP messages look very similar to mine. My CDP and UDP domain names are "cdp" and "udp".
I do not have a trace of a successful call because we haven't completed one yet, but I do have a trace of what we are getting currently. Here it is:
09:54:34 SIP.STACK MSG Tx: TCP src=10.19.253.6:5060 dst=172.22.231.245:5060
09:54:34 SIP.STACK MSG INVITE sip:6098@adtransip.com:5060 SIP/2.0
09:54:34 SIP.STACK MSG From: "Daniel Ogles" <sip:3029@adtransip.com:5060;transport=TCP>;tag=4d748a8-0-13c4-24fce-6154861d-24fce
09:54:34 SIP.STACK MSG To: <sip:6098@adtransip.com:5060>
09:54:34 SIP.STACK MSG Call-ID: 4db6d28-0-13c4-24fce-669f1131-24fce@adtransip.com
09:54:34 SIP.STACK MSG CSeq: 1 INVITE
09:54:34 SIP.STACK MSG Via: SIP/2.0/TCP 10.19.253.6:5060;branch=z9hG4bK-24fce-907bcd9-761566f2
09:54:34 SIP.STACK MSG Max-Forwards: 70
09:54:34 SIP.STACK MSG Supported: 100rel,replaces
09:54:34 SIP.STACK MSG Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, PRACK, REFER, REGISTER
09:54:34 SIP.STACK MSG User-Agent: ADTRAN_NetVanta_7100/A2.03.13.E
09:54:34 SIP.STACK MSG Contact: <sip:3029@10.19.253.6:5060;transport=TCP>
09:54:34 SIP.STACK MSG Content-Type: application/SDP
09:54:34 SIP.STACK MSG Content-Length: 291
09:54:34 SIP.STACK MSG
09:54:34 SIP.STACK MSG v=0
09:54:34 SIP.STACK MSG o=- 1246028063 1246028063 IN IP4 10.19.216.71
09:54:34 SIP.STACK MSG s=Polycom IP Phone
09:54:34 SIP.STACK MSG c=IN IP4 10.19.216.71
09:54:34 SIP.STACK MSG t=0 0
09:54:34 SIP.STACK MSG a=sendrecv
09:54:34 SIP.STACK MSG m=audio 50058 RTP/AVP 0 18 101
09:54:34 SIP.STACK MSG a=silenceSupp

ff - - - -
09:54:34 SIP.STACK MSG a=rtpmap:0 PCMU/8000
09:54:34 SIP.STACK MSG a=rtpmap:18 G729/8000
09:54:34 SIP.STACK MSG a=fmtp:18 annexb=no
09:54:34 SIP.STACK MSG a=rtpmap:101 telephone-event/8000
09:54:34 SIP.STACK MSG a=fmtp:101 0-15
09:54:34 SIP.STACK MSG
09:54:34 SIP.STACK MSG Rx: TCP src=172.22.231.245:5060 dst=10.19.253.6:5060
09:54:34 SIP.STACK MSG SIP/2.0 302 Moved Temporarily
09:54:34 SIP.STACK MSG Via: SIP/2.0/TCP 10.19.253.6:5060;branch=z9hG4bK-24fce-907bcd9-761566f2;received=10.19.253.6
09:54:34 SIP.STACK MSG From: "Daniel Ogles" <sip:3029@adtransip.com:5060;transport=TCP>;tag=4d748a8-0-13c4-24fce-6154861d-24fce
09:54:34 SIP.STACK MSG To: <sip:6098@adtransip.com:5060>;tag=20974
09:54:34 SIP.STACK MSG Call-ID: 4db6d28-0-13c4-24fce-669f1131-24fce@adtransip.com
09:54:34 SIP.STACK MSG CSeq: 1 INVITE
09:54:34 SIP.STACK MSG Contact: <sip:6098;phone-context=cdp.udp@adtransip.com:5060;maddr=172.22.231.244;transport=tcp;x-nt-redirect=redirect-server>
09:54:34 SIP.STACK MSG Content-Length: 0
09:54:34 SIP.STACK MSG
09:54:34 SIP.STACK MSG Tx: TCP src=10.19.253.6:5060 dst=172.22.231.245:5060
09:54:34 SIP.STACK MSG ACK sip:6098@adtransip.com:5060;transport=TCP SIP/2.0
09:54:34 SIP.STACK MSG From: "Daniel Ogles" <sip:3029@adtransip.com:5060;transport=TCP>;tag=4d748a8-0-13c4-24fce-6154861d-24fce
09:54:34 SIP.STACK MSG To: <sip:6098@adtransip.com:5060>;tag=20974
09:54:34 SIP.STACK MSG Call-ID: 4db6d28-0-13c4-24fce-669f1131-24fce@adtransip.com
09:54:34 SIP.STACK MSG CSeq: 1 ACK
09:54:34 SIP.STACK MSG Via: SIP/2.0/TCP 10.19.253.6:5060;branch=z9hG4bK-24fce-907bcd9-761566f2
09:54:34 SIP.STACK MSG Max-Forwards: 70
09:54:34 SIP.STACK MSG Supported: 100rel,replaces
09:54:34 SIP.STACK MSG Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, PRACK, REFER, REGISTER
09:54:34 SIP.STACK MSG User-Agent: ADTRAN_NetVanta_7100/A2.03.13.E
09:54:34 SIP.STACK MSG Contact: <sip:3029@10.19.253.6:5060;transport=TCP>
09:54:34 SIP.STACK MSG Content-Length: 0
09:54:34 SIP.STACK MSG
09:54:34 SIP.STACK MSG Tx: TCP src=10.19.253.6:5060 dst=172.22.231.245:5060
09:54:34 SIP.STACK MSG INVITE sip:6098;phone-context=cdp.udp@adtransip.com:5060;maddr=172.22.231.244;transport=tcp;x-nt-redirect=redirect-server SIP/2.0
09:54:34 SIP.STACK MSG From: "Daniel Ogles" <sip:3029@adtransip.com:5060;transport=TCP>;tag=4d748a8-0-13c4-24fce-6154861d-24fce
09:54:34 SIP.STACK MSG To: <sip:6098@adtransip.com:5060>
09:54:34 SIP.STACK MSG Call-ID: 4db6d28-0-13c4-24fce-669f1131-24fce@adtransip.com
09:54:34 SIP.STACK MSG CSeq: 2 INVITE
09:54:34 SIP.STACK MSG Via: SIP/2.0/TCP 10.19.253.6:5060;branch=z9hG4bK-24fce-907bd05-3462f138
09:54:34 SIP.STACK MSG Max-Forwards: 70
09:54:34 SIP.STACK MSG Supported: 100rel,replaces
09:54:34 SIP.STACK MSG Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, PRACK, REFER, REGISTER
09:54:34 SIP.STACK MSG User-Agent: ADTRAN_NetVanta_7100/A2.03.13.E
09:54:34 SIP.STACK MSG Contact: <sip:3029@10.19.253.6:5060;transport=TCP>
09:54:34 SIP.STACK MSG Content-Type: application/SDP
09:54:34 SIP.STACK MSG Content-Length: 291
09:54:34 SIP.STACK MSG
09:54:34 SIP.STACK MSG v=0
09:54:34 SIP.STACK MSG o=- 1246028063 1246028063 IN IP4 10.19.216.71
09:54:34 SIP.STACK MSG s=Polycom IP Phone
09:54:34 SIP.STACK MSG c=IN IP4 10.19.216.71
09:54:34 SIP.STACK MSG t=0 0
09:54:34 SIP.STACK MSG a=sendrecv
09:54:34 SIP.STACK MSG m=audio 50058 RTP/AVP 0 18 101
09:54:34 SIP.STACK MSG a=silenceSupp

ff - - - -
09:54:34 SIP.STACK MSG a=rtpmap:0 PCMU/8000
09:54:34 SIP.STACK MSG a=rtpmap:18 G729/8000
09:54:34 SIP.STACK MSG a=fmtp:18 annexb=no
09:54:34 SIP.STACK MSG a=rtpmap:101 telephone-event/8000
09:54:34 SIP.STACK MSG a=fmtp:101 0-15
09:54:34 SIP.STACK MSG
09:54:34 SIP.STACK MSG Rx: TCP src=172.22.231.245:5060 dst=10.19.253.6:5060
09:54:34 SIP.STACK MSG SIP/2.0 302 Moved Temporarily
09:54:34 SIP.STACK MSG Via: SIP/2.0/TCP 10.19.253.6:5060;branch=z9hG4bK-24fce-907bd05-3462f138;received=10.19.253.6
09:54:34 SIP.STACK MSG From: "Daniel Ogles" <sip:3029@adtransip.com:5060;transport=TCP>;tag=4d748a8-0-13c4-24fce-6154861d-24fce
09:54:34 SIP.STACK MSG To: <sip:6098@adtransip.com:5060>;tag=16445
09:54:34 SIP.STACK MSG Call-ID: 4db6d28-0-13c4-24fce-669f1131-24fce@adtransip.com
09:54:34 SIP.STACK MSG CSeq: 2 INVITE
09:54:34 SIP.STACK MSG Contact: <sip:6098;phone-context=cdp.udp@adtransip.com:5060;maddr=172.22.231.244;transport=tcp;x-nt-redirect=redirect-server>
09:54:34 SIP.STACK MSG Content-Length: 0
09:54:34 SIP.STACK MSG
09:54:34 SIP.STACK MSG Tx: TCP src=10.19.253.6:5060 dst=172.22.231.245:5060
09:54:34 SIP.STACK MSG ACK sip:6098;phone-context=cdp.udp@adtransip.com:5060;maddr=172.22.231.244;transport=tcp;x-nt-redirect=redirect-server SIP/2.0
09:54:34 SIP.STACK MSG From: "Daniel Ogles" <sip:3029@adtransip.com:5060;transport=TCP>;tag=4d748a8-0-13c4-24fce-6154861d-24fce
09:54:34 SIP.STACK MSG To: <sip:6098@adtransip.com:5060>;tag=16445
09:54:34 SIP.STACK MSG Call-ID: 4db6d28-0-13c4-24fce-669f1131-24fce@adtransip.com
09:54:34 SIP.STACK MSG CSeq: 2 ACK
09:54:34 SIP.STACK MSG Via: SIP/2.0/TCP 10.19.253.6:5060;branch=z9hG4bK-24fce-907bd05-3462f138
09:54:34 SIP.STACK MSG Max-Forwards: 70
09:54:34 SIP.STACK MSG Supported: 100rel,replaces
09:54:34 SIP.STACK MSG Allow: ACK, BYE, CANCEL, INFO, INVITE, NOTIFY, OPTIONS, PRACK, REFER, REGISTER
09:54:34 SIP.STACK MSG User-Agent: ADTRAN_NetVanta_7100/A2.03.13.E
09:54:34 SIP.STACK MSG Contact: <sip:3029@10.19.253.6:5060;transport=TCP>
09:54:34 SIP.STACK MSG Content-Length: 0
The problem may well be in the Adtran, but I have no way of knowing for sure or proving it. It seems like I'm the first one to ever try to network these two boxes, so there's just not any info out there that I can find.