12 Apr
2005
12 Apr
'05
6:06 p.m.
On 04/12/05 17:36, Klaus Darilion wrote:
Daniel-Constantin Mierla wrote:
That will be sometime in future, if ever -- depending on who and how is
going to control it -- there are VoIP communities across many countries
and would be rather complicated/expensive for the provider to buy
numbers from each country. Anyhow, I was talking about current
interconnection method, based on prefix, that none has regulated and
nobody had tried (afaik) to make kind of agreements to use same prefix
for same domain. The bad things is that the business cannot wait until
ENUM is adopted in all countries, so you have to live without for a
while and then will be pretty hard to teach your customers to adopt new
contact numbers and so on.
There is a list with some VoIP service providers,
but for sure it is
not complete:
http://www.voip-info.org/wiki-VOIP+Service+Providers
Anyhow, some of them may not accept calls from foreign networks so
you should check if you can interconnect. Prefix routing is your
solution and I guess each provider implements its own numbering and
prefix allocation policy - I have not heard about any standardization
in this direction.
The routing protocol is ENUM, but only few service providers have ENUM
entries for their number ranges. The problem is that most countries
are still in a "trial" state. There are also private ENUM trees to
benefit from ENUM without paying for the ENUM domains (like e164.info...)
IMO using prefixes is PITA. You need a prefix for every SIP domain
(there will be thousands soon). User has to remember all the prefixes.
That does not scale. This remembers the beginning of the Internet
without DNS where you had to edit the hosts file of your PC.
Their are also other mechanisms (like Dundi for asterisk). But ENUM is
the only method where the association between Internet phone numbers
and E.164 phone numbers is validated by a public authority.
Of course ENUM would be an ideal solution to this, let's see when it
will be globally adopted.
Daniel
regards,
klaus
Daniel
On 04/12/05 14:58, Felipe Martins wrote:
Hi guys,
I've made my first full operational SER Server, in fact there are
too server talking to each other. When the call is not to another
SER server, it forwards to another external server, when the
requested number belongs to my other SER Server it go there and
close the voip tunnel, just as usual. So, at the moment, I'm
implementing my routing logic, in order to implement it well, i need
all the phone ranges and their server names or IP to route all the
calls to the right server, for example, if a user calls a "1213..."
begging phone number, it goes to Go2Call, and so on the all other
Phone numbers. Do anybody know where can I find a list of phone
number ranges all over the world, I mean, every VoIP server has a
certain range, without it my calls will be lost, and they will not
end where they were meant to.
Thanks in Advance.
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