sundance-communications.com/forum Forums TDM Business Telephone Systems Samsung Telephones & Systems IP Phones and Page Group? (not all sets rcv'ing page)

Howdy,

So I've got a 7200S v4.70 and all IP phones. The 7200S feeds to two, stacked Ubigate switches.

All the sets are in the first page group, the volumes are all uniform. It didn't seem to page when I pretested the system in our office until I set the Multicast Addr to 0.0.0.0, then it seemed to work.

After install and all (35) phones are set, some sets receive the page and some consistently don't. I do not know if the sets that don't receive the page are on the second Ubigate or not.

Anyone have any ideas or how that Multicast thing works?

Ich bin immer, dein Knecht!

I've not had chance to try it yet but looking at the v4.70 feature guide if you don't use multicast paging requires one MGI channel for each phone in the page group (so you may be running out of MGI channels), whereas using multicast only requires one MGI channel for the whole group.

Only works with OS v4.60 onwards, MGI16/64 v1.27 onwards, OAS v2.03 onwards, and SMT-i2200/2205/3100/5210/5220/5230/5240/5243/7130 phones.

DM 4.1.3 and 2.7.1 look straightforward, in DM 5.2.25 you list the IP addresses of the phones, or .255 for the subnet.

I've not used Ubigate switches, it depends if the pass or block multicast (which is a form of broadcast) by default.

What isn't stated in the guide is that multicasting doesn't play well in routed IP networks.