Avaya IP Office 500 Combo Card V2 (IPO IP500 Combo Card V2 w/ ATM4V2)Pulled From A Working EnvironmentKey Features & Port Breakdown:
Ports 1–6: Digital Station (DS) ports for Avaya digital phones.
Ports 7–8: Analog Phone (FXS) ports for standard single-line phones, fax machines, or paging units.
Ports 9–12: 4 Analog Trunk ports (ATM4V2 daughter card installed) for connecting traditional loop-start CO lines.
10 VCM Channels: Built-in Voice Compression Module channels for IP trunking or IP extension support.

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