I have a design for Voice Over internet for three separate locations (Lagos, London and Kenya) as shown in the attached diagram.
The scenario is this:
** There is no private WAN line king all three locations
** The HQ is Lagos
** All three locations have traditional PBX and Analogue Phones (old design)
** All three locations communicate through the PSTN or ISPs
Now, with the introduction of the Callmanager and IP Phones (NO WAN YET), and with the attached design, all IP Phones at the London and Kenya offices are meant to be registerred in the CallManager at the HQ (Lagos).
1) How is this possible over the public internet;
2) What IOS features/Capabilities should the Routers at all locations have?
3) What is the required minimum bandwith for each location?
I would just like to clarify that VPN only offers security (and is still recommended conection method) however, it will do nothing to help guard against potential delay, jitter, packet loss or QOS over the public internet. If anything it will make things slightly worse by adding some additional bandwidth and processing requirements.
-- please remember to rate and mark answered helpful posts --
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...