[Asterisk-Users] Grandstream Budgetone SIP registration fails

[Matthew Marlowe]

Does using registration via ip instead of user/pass provide any better
stability or anything of the liking? 

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Olle E.
Johansson
Sent: Monday, March 08, 2004 12:50 PM
To: Asterisk Users
Subject: Re: [Asterisk-Users] Grandstream Budgetone SIP registration
fails

Jean-Marc V. Liotier wrote:

> On Sun, 2004-03-07 at 13:03, Philipp von Klitzing answered off-list:
> 
>>>[6040]
>>>defaultip=192.168.1.40
>>
>>Replace this with "host=dynamic" and see what happens.
> 
> 
> That's it !
> 
> Thinking it was going to make things easier to diagnose, I had chosen 
> to set the phones with a static IP. Apparently, wether defaultip is 
> set or not, when the phone uses a static IP address, some assumptions 
> are made about authentication. I do not understand what they are and 
> which side assumes something, but it prevents SIP registration. 
> Setting host=dynamic even though I use static IP addresses solved the
problem.
> 
> Many hours went into finding that out. If somebody has a clue about 
> how the a static IP address influences the SIP registration process, I

> would be happy to know about it.

Registration is simply a way for a SIP device to tell the PBX "I'm here,
place any calls to this IP address". To be able to do so, most
configurations require the client to authenticate. If you configure a
static address, the PBX already know how to reach the client and no
registration is therefore needed (and not allowed in asterisk).

Enabling registration makes the SIP device mobile across the network.
Configuring a static address locks it in.


/Olle
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