Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Voip expert advise pls.

Posted on 2003-12-01
3
Medium Priority
?
491 Views
Last Modified: 2008-03-03
Hi,

I looking at Voip service. Have go through some guide but still cannot fully understand.
Any good review, diagram website.?

Correct me:=
office phone(PSTN) ---> Cisco Router(DataCenter)---> internet connectivity ----> Voip ISP ?

Clarification need:
-PXS
-PXO
-Gatekeeper
-Any Cisco product recommend
-Besides Cisco, any other hardware products recommend
-How many simultenous call can be supported, if 256kbps connectivity

0
Comment
Question by:qazakax
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
3 Comments
 
LVL 3

Accepted Solution

by:
sheahmed earned 200 total points
ID: 9856247

You configure a dial-peer for every voice call ... and a codec is used ... that codec determines the bandwidth utilized by the voice call ... there are certain codecs which can reduce your bandwidth size upto 12k ... so you can make about 20 calls simultaneously ...

- FXS: An FXS interface connects directly to a standard telephone and supplies ring, voltage, and dial tone. The Cisco FXS interface is an RJ-11 connector that allows connections to basic telephone service equipment, keysets, and PBXs.

- FXO: An FXO interface connects to the PSTN central office and is the interface offered on a standard telephone. The Cisco FXO interface is an RJ-11 connector that allows an analog connection at the PSTN central office or to a station interface on a PBX.

- GateKeeper: component of an H.323 conferencing system that performs call address resolution, admission control, and subnet bandwidth management.


0
 
LVL 3

Expert Comment

by:sheahmed
ID: 9856285
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

New Server 172.16.200.2  was moved from behind Router R2 f0/1 to behind router R1 int f/01 and has now address 172.16.100.2. But we want users still to be able to connected to it by old IP. How to do it ? We can used destination NAT (DNAT).  In DNAT…
This article is a guide to configure bridging on Cisco Routers.  This is something I never knew was possible until after making a few phone calls to Cisco.  Using bridging saved our company money by not requiring us to purchase a new switch.  Bridgi…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…

721 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question