Help migrate sme to voip thru asterisk

Asterisk Asterisk Support
1

translating this from french, so sorry if not cristalclear:

hello,

my first post on this forum. I hope that you will be able to
help me if possible…

reason for the post: General:

to help to make migrate SME to one PABX with the VOIP on server
asterisk.

reason for the post: detailed:

  1. installation of a server asterisk 2. evaluation màj TDSL towards
    wimax 3. choices of a software or FAI VOIP for telegraphic telephony
  2. to explore possibilities GSM wifi (wimax) on voip

our current material (telegraphic telephony)

1 automatic exchange NEXPAN L IP with: 110 analogical stations
16 numerical stations 1 chart T2 connection France Telecom 1 chart LR
connection seeks anybody 1 interface Ethernet 10/100base T voice
Messaging 100BV 2 accesses 10 licences IP

as well as a dependent material of search for people with the
current automatic exchange.

our current material (mobile telephony):

float of less than 10 mobiles (nokia), but very active abroad

our current material (Internet)

TDSL
flow down line flow peak ATM: 1,2 M flow guaranteed IP: 180 K flow up
line flow peak ATM: 320 K flow guaranteed IP: 180 K

20 addresses electronic mail 50 IP addresses firewall with
management _______________

our souhaits/besoins:

  1. qualified assistance to install a server asterisk (especially for
    management of the calls): either while coupling on port IP of nexpan
    or in total replacement of the nexpan

a) how to connect 110 physical cables RJ45 on a PC??? (it is
said to me that a PC can make self-switching, but how?). Needed
special are charts? Won’t the final cost be higher than that of the
nexpan itself?

are b) which the possibilities of intégrér or to replace our
material of search for people in a server asterisk?

c) possibilities of multisite management?

  1. choices of the VOIP (most difficult) we had thought of software
    like skype, gizmo or jajah, but:

not all the employees have a DIRECT access to Internet (but all must
be able to make voip) we want to be able to continue to use our
analogical telephones one needs a solution adapted to the requirements
of a company: a) only one account with plurality of recipients b)
safety of the calls (Zimmermann has just proposed its plan of
implementation of PGP in the VOIP, but currently not of encryption
apart from skype?) c) quality continues incoming calls & outgoing. d)
choice of an adapter ATA for analogical telephones without direct
access to Internet.

  1. to evaluate if our TDSL to 1,2 m is sufficient for
    VOIP: to increase flow? possibility of migrating on technology of
    wimax? (do there exist already commercial offers?)

  2. possibility of migrating towards the VOIP for the mobiles? to my
    knowledge, only skype currently pushes in this direction, with its
    project of skypemobile & its contract with E-PLus in Germany. Do there
    exist viable alternatives today?

thank you for your qualified response

2

That post was a bit too long, really. You should break your questions up into smaller messages and post them one at a time. Otherwise, the length and complexity of the message will stop people answering it.

[quote=“iasterix”]a) how to connect 110 physical cables RJ45 on a PC??? (it is
said to me that a PC can make self-switching, but how?).
[/quote]
You need either a bloody big ethernet switch or a bank of smaller ones, chained together (more likely).

If you’re talking about remote system administration, then yes - it’s easy.

[quote]2. choices of the VOIP (most difficult) we had thought of software
like skype, gizmo or jajah, but:[/quote]
Avoid skype and other proprietory protocols. If you buy skype phones you can only use them with skype’s service. If you buy SIP phones, you can use them with any one of probably hundreds of VOIP services.

[quote]not all the employees have a DIRECT access to Internet (but all must
be able to make voip) we want to be able to continue to use our
analogical telephones [/quote]
“analog” phones.

Analog phones can be connected to a VOIP system using ATAs (Analog Telephony Adapters)

You should start by reading everything relevant on this site:

voip-info.org

It has a vast amount of information about VOIP in general and asterisk in particular.