Maximal is experienced with many types of phone systems. Our engineers have worked with many of the most common phones systems in service out in the field, including Avaya, Nortel, Mitel, Cisco, and and NEC. This means that we can  service these existing systems with our services.

A. SIP Trunking

B. SIP to PRI Gateway

C. Custom H323 Trunks to Interface with Avaya Systems.

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