I’m just trying to figure out what the maximum number of IP phones I can have on an SL 2100 according to the brochure it looks like it’s 112

I am in the process of quoting a school system an IP phone system but I’m not sure if 112 is gonna be enough it looks like they have about 120 I’m just wondering if I can use TDM phones if I run out of Ip Ports

It looks like the system has 256 ports but I’m not sure if I’m thinking this right way

They have a PRI

And two external page zones

Also are the IP phones that they use on the 2100 compatible with the IP phones on the 9100


I’m not a dealer in the 9100 but I would have to go through a third-party which makes it very confusing

Thanks

JD