At 05:49 PM 8/9/2004, mark spowage wrote:
So then to take care of SIP phones that can only
register with just ONE server SER must
work as a proxy and catch the ip information from REGISTER requests inorder
to pass a REFER or INVITE from a call generator engine. Clearly the major G/W's have
a solution for allowing NAT'd sip phones to call out. The challenge is for a solution
provider to stand in the middle and add features such as click to call, or simply
allow sip to sip calls as SERVERS such as ICONNECT which have no interest in offering
any service other than the PSTN G/W function.
Somehow SER can stand its ground as a middleman and offer the SIP clients
additional features such as sip to sip dialing and web dialing ,
First keep in mind that middleman solutions may or may not be ideal.
Inherently, they have security and scalability issues.
As for web dialing, feel free to use serweb -- it is not middle-man (B2BUA) based,
it is end-2-end based (REFER).
or even a CHOICE
of commerical SERVERS. I guess some companies have figured this out and are
offering a solution ?
rather than mangling someone's identity, you may create a security relationship
to the gateway provider domain-wise.
As it would likely take a major s/w effort to create a
middleman solution based on SER ?
-jiri
thx
Jan Janak <jan(a)iptel.org> wrote:
SER can forward a REGISTER message, even fork it, but it cannot respond
to digest challenge. That means if one of the servers sends a 401
Unauthorized then SER cannot generate a new REGISTER message with digest
credentials.
Jan.
On 08-08 09:12, mark spowage wrote:
most clients just register ONE server, so can SER
register with SEVERAL and
forward to the G/W's as needed. As SER cannot easily generate messages , then
the REGISTER message must somehow be forwarded..and applied to itself and others.
no mention of this OBVIOUS need anywhere that i have looked yet.
thx
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