[cisco-voip] SIP Trunk between CallManager 6 & OnDO Server

[Jason Burns]

Sorry about the quick reply, but just saw your topology again and realized
it's a trunk. So you'd be checking the SIP Profile / Security Profile of the
SIP Trunk to use UDP outbound.

On Tue, Jun 2, 2009 at 7:59 AM, Jason Burns <burns.jason at gmail.com> wrote:

> Are you sure the xlite phone is configured to accept inbound TCP?
>
> The CallManager by default sends outbound TCP only. In CallManager you can
> try changing the SIP Profile (or maybe it's security profile) associated
> with the xlite phone to use UDP for the outbound protocol.
>
> The only other reasons I can think of for the PC to reject the inbound SYN
> from CallManager are a firewall on the PC vlocking TCP 5060, or the xlite
> client is listening on another port.
>
>
> On Tue, Jun 2, 2009 at 6:48 AM, Alan Su <cj.alan at gmail.com> wrote:
>
>> Dear All,
>>
>> I'm having a problem to make call from IP Phone registered in CCM6 to SIP
>> phone (X-lite) registered in OnDO.
>>
>> Topology:
>> IPPhone -- CCM6 <-- SIP Trunk --> OnDO -- XLite
>>
>> All devices are in the same network segement.
>>
>> When I make a call from XLite to IPPhone, it works. But when I tried to
>> make call from IPPhone to XLite, it just returned busy tone. I use Ethereal
>> in OnDO server to capture packets, it did receive the packet from CCM6. The
>> flow as below:
>>
>> 1. (source) CCM6, (destination) OnDO, (protocol) TCP, (info) 38988 > sip
>> [SYN] seq=0 win=5840 len=0 mss=1460 tsv=612823 tser
>> 2. (source) OnDO, (destination) CCM6, (protocol) TCP, (info) sip > 38988
>> [RST, ACK} seq=1 ack=1 win=0 len=0
>>
>> Any suggestion would be very grateful, thanks a lot~
>>
>> Regards,
>> Alan
>>
>> _______________________________________________
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>> cisco-voip at puck.nether.net
>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>
>>
>
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