Yeah, it turns out that they had the alarm line connected wrong and it was sharing the line with the voice traffic, not connected in-line to be able to seize the line. Luckily a situation never arose wherein the two conflicted.
Their alarm company is trying to charge $1200-$1700 to install a $250 cellular communicator - might be switching companies. On Fri, Sep 18, 2026, 1:33 AM Darin Steffl <[email protected]> wrote: > Comcast voip isn't going over the internet. Theirs runs close to a good > quality landline with no jitter on their internal network. So it can handle > data from alarms. > > Regular voip going over the internet is good enough for voice but not > usually good enough for data. > > Our policy for phone lines is we only support voice. We don't support > anything that requires data or life safety applications like fax, alarms, > elevators, fire alarms, etc. There are efax solutions for old school fax > machines but it's not a normal voip line. > > > > Darin Steffl > Minnesota WiFi > www.mnwifi.com > 507-634-WiFi > Like us on Facebook <http://www.facebook.com/minnesotawifi> > > On Thu, Sep 17, 2026, 5:25 PM Jason McKemie < > [email protected]> wrote: > >> I just switched a business customer over from Comcast. They had one voice >> line and data. After the number ported their alarm stopped working. The >> alarm company is telling me that their system will work over Comcast's >> voip, but won't work over most other providers, including AT&T landlines. >> >> A couple of things here: >> >> You can have a data stream for an alarm going out a voice line that is >> actively used for it's intended purpose? >> >> This can, in some cases, be a VoIP line? >> >> They are trying to hit this account up for $1700 to switch over to a >> cellular / IP system. >> >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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