[Freeswitch-users] Grandstream GXP 2000

Peder @ NetworkOblivion peder at networkoblivion.com
Mon Aug 4 12:30:24 PDT 2008

Yeah, the GS don't work with TCP to any SIP PBX.  I opened a ticket with 
GS and told them that their TCP implementation is broken and their 
answer was "use udp".  It worked initially for me, but if I restarted 
FS, the GS never re-registered.  Their TCP implementation is broken as 
the FS server sends back a RST since the port is no longer active and 
the GS just keeps trying to register on a bad port.  The only fix is to 
reset the GS every time FS is restarted.

Jonas Gauffin wrote:
> Hello
> I have problems with TCP and GXP2000 phones.
> They work fine using UDP, but no calls arrive if I switch to TCP.
> I've upgraded to the latest GS firmware today to see it that helped,
> but it didn't.
> Have anyone else had problems with TCP?
> Regards,
>   Jonas
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