Guest fsoudbakhsh Report post Posted 07/26/2010 07:49 AM Hello, I need to order the internet bandwidth for my new system. what is the minimum bandwidth HMP require for up and down load stream to have good sound quality? thanks Share this post Link to post
SupportTeam Report post Posted 07/26/2010 08:38 AM You not only need bandwidth, but also need that IP packets do not get delayed. You will need to discuss this with your IP connectivity supplier and the VoIP service provider. If running more then about 10 channels you will basically need a "TDM over IP" or a "Guaranteed Bandwidth VPN" type setup. G.711 requires 64Kbits, and G.729 requires less (depending on what equipment you are connecting to). As a rule of thumb allow about 100Kbits per G.711 channel. Share this post Link to post
Guest fsoudbakhsh Report post Posted 07/27/2010 07:53 AM Hello, If I use 3cx IP PBX. would I still need the TDM over IP? here is link to 3cx IP PBX for your review. http://www.3cx.com/ Share this post Link to post
SupportTeam Report post Posted 07/27/2010 10:06 AM Placing additional equipment/switches in the VoIP travel path only adds to packet delay etc. problems. Sounds like you do not understand VoIP networking. You should first have a good grasp of the underlying IP communications before you undertake rolling out a larger scale VoIP system that is not local to your network. Otherwise you may end up with a system which does not work. Share this post Link to post