atcomsystems.ca/forum Forums TDM Business Telephone Systems Toshiba Telephones & Systems CIX with Grandstream GXW4216 Gateway

Has anyone moved a customer from analog trunks to SIP and used this Voip to analog gateway to do it instead of an MIPU?

I am wondering what the advantages / disadvantages would be.

Customer is tired of POTS lines, and cable co phone lines have proven unreliable.

How are most people dealing with alarm / fire alarm lines / fax machines? using RSTU? keeping some POTS lines and converting others?

Thanks for the input!

We port/churn customers from PSTN/BRI/PRI to our SIP services all the time and connect to either the CIX with a MIPU or IPedge.

We also have customers that keep their existing lines and we connect them to the IPedge via Mediatrix gateways without any problems we normally supply the C7 series FXO or FXS and the 3000 series for the PRI connections.

We have used Adtran and Audiocodes Gateways in the past but they are just too expensive compared to the Mediatrix.

We have used a Cisco/Linksys SPA8000 in the past to provide analog to the phone system. There had been some issues, but I don't think most of them were directly related to the gateway. Some were carrier issues. We had the Cisco as the router, but the IT guy was saying that the router was slowing down the connection (which seemed to be true), so we put it behind their firewall. It works pretty good, but we could not control QOS anymore.

Fire alarm should never be on these types of lines. They should have at least 1 dedicated POTS. A burglar alarm system might work, but I would recommend a cell backup or share a POTS with a fax. Faxes may be hit and miss. They may work, but likely a lot less reliable then POTS. If faxing is important then use a POTS shared with a burglar alarm system, or just use a hosted fax to email service.

And you could take out that AMDS from the CIX because you will never be able to dial-up to the processor over SIP.