No. We have many customers that use an Integrated Access Device (IAD) that converts the SIP trunks back to traditional analog or PRI connections.
https://www.inflowcomm.com/logo/inflow_logo.png 0 0 Brendan Polk https://www.inflowcomm.com/logo/inflow_logo.png Brendan Polk2009-11-12 14:22:302016-07-05 06:53:01Do I need a SIP-enabled Phone System?
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