[Spce-user] SIP 200 packets rejected on trunk

[Byron Smith]

After a lot of investigation, turns out I had a NAT issue so thankfully no need to do anything to the route-record (not that I could anyway).

Thankfully the provider isn't ours as the trunk is only setup in a process to get them out the door - a request from our client - I wonder why he wants them gone...

Thanks all.
Byron

Sent from my iPhone, please excuse any errors.

On 17 Jan 2013, at 12:22, "John Murray" <john.murray at skyracktelecom.com> wrote:

> Hi,
> 
> I've heard this kind of response also from PSTN providers.
> It usually goes with 'I've heard that Record-Route headers are a security risk'. Same people who turn off ICMP reply and TTL timeout responses which also MUST be sent.
> It's standard FUD from the low end security people who end up breaking things.
> 
> I know this doesn't help, but you're not alone :-)
> 
> Regards
> 
> John
> 
> -----Original Message-----
> From: spce-user-bounces at lists.sipwise.com [mailto:spce-user-bounces at lists.sipwise.com] On Behalf Of Jon Bonilla (Manwe)
> Sent: 17 January 2013 11:14
> To: spce-user at lists.sipwise.com
> Subject: Re: [Spce-user] SIP 200 packets rejected on trunk
> 
> El Thu, 17 Jan 2013 12:07:36 +0100
> Andreas Granig <agranig at sipwise.com> escribió:
> 
>> Hi Byron,
>> 
>> On 01/17/2013 11:51 AM, Byron Smith wrote:
>>> I'm trying to set up a trunk with a remote peer but their SBC is 
>>> rejecting my SIP 200 due to the Record-Route headers and he is 
>>> asking me to remove these headers.
>> 
>> Record-Route headers are an integral part of SIP, and every device
>> compliant to SIP really MUST support them.
>> 
>> There is no way to remove them from the SPCE without completely and 
>> horribly breaking the call flows.
>> 
>> If they insist on removing them, you better change your trunking 
>> provider as they obviously don't know what they are doing.
>> 
> 
> 
> Andreas is 100% right. Please ask them an explanation regarding why you should remove your record-route headers. Maybe what they don't like is having "127.0.0.1" in the rr header (which is 100% valid).
> 
> I can't believe that a sbc can't hable rr headers.
> 
> 
> btw, I agree with Andreas, you'd better change your provider. But I'd like to know what their explanation is first.
> 
> 
> cheers,
> 
> Jon
> 
> 
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