[VoIP] IAX/SIP ATA - was Re: SIP/firewall problem - the saga

[Ian Jolly]

Tnx for the info, folks. We'll give that a try but not tonight - supper and 
bed I think!

Anyone know anything about the ATcom AG-188 
http://www.atcom.cn/En_products_AG188.html  - Single FXS which seems to work 
with both SIP and IAX2  at the same time!!

Ian J



----- Original Message ----- 
From: "john jones" <jjones3601 at yahoo.com>
To: <jnovack at stromberg-carlson.org>; "Voice Over IP Tandem for Analog 
Switches" <voip at ckts.info>
Sent: Sunday, November 12, 2006 10:25 PM
Subject: Re: [VoIP] SIP/firewall problem - the saga


> Are you using static NAT or dynamic NAT?  Typically, dynamic NAT is the 
> default and if the device on the inside does not continue to use the 
> connection, the translation is torn down after a relatively short time. 
> Also, the NAT translation is usually specific to an individual peer and 
> can't be used by another external partner.
>
> John
>
> ----- Original Message ----
> From: John Novack <jnovack at stromberg-carlson.org>
> To: Voice Over IP Tandem for Analog Switches <voip at ckts.info>
> Sent: Sunday, November 12, 2006 3:31:07 PM
> Subject: Re: [VoIP] SIP/firewall problem - the saga
>
> In a situation where both ends are through routers with NAT, it is more
> problematical., and many have problems. One issue seems to be that NAT
> is available in several flavors, none documented with the equipment.
>
> For a SIP phone or ATA within one's own LAN it mostly just works.
>
>
> John Novack
>
>
> Andrew Green wrote:
>> In a Sipura the only configuration options you should need to set are,
>> "Display Name" (what you want the caller-id name to come up as),
>> "Proxy" (the ip/dns of the asterisk box), "Register = Yes", "User ID"
>> (the sip user in asterisk), and the Password (the secret in asterisk).
>> I never had to set any other options to get mine to work.
>>
>> Here is my asterisk sip context for my sipura-1001 (should also work
>> for a 2000):
>>
>> [spa-1001] ;you should set this to the same as the username
>> type=friend
>> host=dynamic
>> username=spa-1001 ;this is the User ID
>> secret=spa ;this is the password
>> context=default
>>
>> Also about the Draytek issue, try changing the registration timout to
>> about a minute so it will re-register every minute. That has helped a
>> friend's spa-1001 that was having the same problem.
>>
>>
>> Hope that helps a bit,
>> Andrew