May be the Two phones using different firmware.

Try the following parameter in the extension 

<param name="sip-force-contact" value="NDLB-connectile-dysfunction"/>

Thanks
Lloyd


On Fri, Feb 18, 2011 at 12:12 PM, Spencer Thomason <spencer@5ninesolutions.com> wrote:
Hello all,
I'm having a strange NAT problem.  My Freeswitch server has a public
ip and the endpoints which are Polycom IP 650s are all behind NAT with
mainly Netgear SRX 5308 routers at multiple locations.  The server is
on a public class C network and one of the locations has its router on
the same class C.  I.e x.x.x.7/24-router, x.x.x.240/24-server.  I'm
only experiencing this with 2 of about 30 extensions.  The first
endpoint to register from this location gets detected as NAT but the
others with the ports remapped do not. This maybe explains it better:

Call-ID:        4feea796-bd96e2ed-e16d27ac@10.6.71.103
User:           1103@x.x.x.240
Contact:        "user" <sip:1103@10.6.71.103;received=x.x.x.
7:5060;fs_nat=yes;fs_path=sip%3A1103%40x.x.x.7%3A5060>
Agent:          PolycomSoundPointIP-SPIP_650-UA/3.3.1.0769
Status:         Registered(UDP-NAT)(unknown) EXP(2011-02-18 11:15:47)
EXPSECS(1143)
Host:           pbx10.5ninesolutions.com
IP:             x.x.x.7
Port:           5060
Auth-User:      1103
Auth-Realm:     pbx10.5ninesolutions.com
MWI-Account:    1103@x.x.x.x

Call-ID:        d21b71b2-75baa80d-768c0b08@10.6.71.104
User:           1101@x.x.x.240
Contact:        "user" <sip:1101@10.6.71.104>
Agent:          PolycomSoundPointIP-SPIP_650-UA/3.3.1.0769
Status:         Registered(UDP)(unknown) EXP(2011-02-18 11:16:48)
EXPSECS(1204)
Host:           pbx10.5ninesolutions.com
IP:             x.x.x.7
Port:           1036
Auth-User:      1101
Auth-Realm:     pbx10.5ninesolutions.com
MWI-Account:    1101@x.x.x.x

Call-ID:        a74e61a6-1863ea7d-789686c4@10.6.71.105
User:           1102@x.x.x.240
Contact:        "user" <sip:1102@10.6.71.105>
Agent:          PolycomSoundPointIP-SPIP_650-UA/3.3.1.0769
Status:         Registered(UDP)(unknown) EXP(2011-02-18 11:17:23)
EXPSECS(1239)
Host:           pbx10.5ninesolutions.com
IP:             x.x.x.7
Port:           1036
Auth-User:      1102
Auth-Realm:     pbx10.5ninesolutions.com
MWI-Account:    1102@x.x.x.x

Call-ID:        100b5148-6a47060a-13c4-50029-c844-22fc4dd3-c844
User:           1801@97.67.110.240
Contact:        "user" <sip:1801@10.6.71.106:5060>
Agent:          MP201 B 1FXS/3.0.1_build_19
Status:         Registered(UDP)(unknown) EXP(2011-02-18 11:26:23)
EXPSECS(1779)
Host:           pbx10.5ninesolutions.com
IP:             97.67.110.7
Port:           1036
Auth-User:      1801
Auth-Realm:     pbx10.5ninesolutions.com
MWI-Account:    1801@x.x.x.x

-------  Another Location ----

Call-ID:        dca2a276-4eb94f97-c55177b0@10.1.10.186
User:           4204@x.x.x.240
Contact:        "user" <sip:4204@10.1.10.186;received=x.x.x.x:
5060;fs_nat=yes;fs_path=sip%3A4204%40x.x.x.x%3A5060>
Agent:          PolycomSoundStationIP-SSIP_5000-UA/3.3.1.0769
Status:         Registered(UDP-NAT)(unknown) EXP(2011-02-18 11:28:04)
EXPSECS(1880)
Host:           pbx10.5ninesolutions.com
IP:             x.x.x.x
Port:           5060
Auth-User:      4204
Auth-Realm:     pbx10.5ninesolutions.com
MWI-Account:    4204@x.x.x.x

The port and IP are detected correctly but the contact is a private
IP.  Any clue as to why the two extension 1101 and 1102 are any
different?

Thanks,
Spencer






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