Multicast Paging Server



  • I am in the process of setting up a couple paging groups. I know that FreePBX limits the size of your page group to about 40 devices. My Vultr cloud instance craps out at about 9 devices. If I want to include all phones in the page group I see it is recommended to use multicast as the alternative. Some recommendations are to use a multicast paging server and others show you can just do it direct on the phones. Does the multicast server come into play after a certain amount of devices or is that if you are paging other locations like a branch office?

    Thanks



  • @syko24 said in Multicast Paging Server:

    I am in the process of setting up a couple paging groups. I know that FreePBX limits the size of your page group to about 40 devices. My Vultr cloud instance craps out at about 9 devices. If I want to include all phones in the page group I see it is recommended to use multicast as the alternative. Some recommendations are to use a multicast paging server and others show you can just do it direct on the phones. Does the multicast server come into play after a certain amount of devices or is that if you are paging other locations like a branch office?

    Thanks

    This depends on a number of factors.

    First you don’t multicast over the internet.

    Second if you are just needing to page within a site where everything is on the same LAN, you can multicast directly on the phones.

    Edit: had to pause. more coming..



  • ok back.

    The problem with option 2 is that is it only on the phones. That is also the benefit since it uses no SIP.

    Third option is a device to be a multicast server. The Snom PA-1 is supposed to do this. I have never tested that. I keep meaning to, but I have not had one spare to setup.

    You need to use option three when you have multiple sites because, as noted previously, you don't multicast over the internet (yes it can be done, let's not go there right now).

    So if you need to page to site 1 and site 2 at the same time, then you can make a page group to a device registered at each site (snom or the like) that then does the multicast locally.



  • @JaredBusch said in Multicast Paging Server:

    ok back.

    The problem with option 2 is that is it only on the phones. That is also the benefit since it uses no SIP.

    Third option is a device to be a multicast server. The Snom PA-1 is supposed to do this. I have never tested that. I keep meaning to, but I have not had one spare to setup.

    You need to use option three when you have multiple sites because, as noted previously, you don't multicast over the internet (yes it can be done, let's not go there right now).

    So if you need to page to site 1 and site 2 at the same time, then you can make a page group to a device registered at each site (snom or the like) that then does the multicast locally.

    @JaredBusch - So basically the paging server would be a waste of money if only using at a single site? It only comes into play when you need to page at a second location.

    If doing multicast at a single site from just the phones, is there a device limit or a point at which you can cause issues on the network? This site is 35 phones so I don't see that being the case but just out of curiosity.



  • @syko24 said in Multicast Paging Server:

    If doing multicast at a single site from just the phones, is there a device limit or a point at which you can cause issues on the network? This site is 35 phones so I don't see that being the case but just out of curiosity.

    No limit, because that is the point of multicast


Log in to reply