Feature	IP500		IP500 V2
Feature	IP500	Plus 4 Port Exp Card	IP500	Plus 4 Port Exp Card
Control Unit Digital Station Ports	Up to 24	Up to 24	Up to 30	Up to 24
Control Unit Analog Phone Ports	Up to 32	Up to 32	Up to 32	Up to 24
Control Unit ETR Phone Ports	-	-	-	-
Embedded Voicemail Card Slot	+	+	+	+
Integral WAN Port	X	X	X	X
External Expansion Ports	12	12	12	12
DTE Port	9-way	9-way	9-way	9-way
Audio In (MOH) Port	+	+	+	+
External O/P Switch Port	+	+	+	+
Conference Parties	128	128	128	128
Configuration Memory	1024KB	1024KB	2048KB	2048KB
Voicemail Pro/TAPI WAV Channels	40	40	40	40
Maximum Extension Capacity	384	384	384	384
Digital Phones only.	264	384	264	384
Analog Phones only.	272	384	272	384
ETR Phones only.	-	-	-	-
IP Phones only.	384	384	384	384
IP400 Trunk Cards Supported	2	2	2	2
Analog trunk cards	+	+	+	+
Quad BRI trunk cards	+	+	+	+
Single PRI trunk cards	+	+	+	+
Dual PRI trunks cards	+	+	+	+
IP500 Daughter Trunk Cards	4	4	4	4
IP500 Analog trunks	+ 16	+ 12	+ 16	+ 12
IP500 BRI trunk channels	+ 32	+ 24	+ 32	+ 24
IP500 PRI trunk channels	+ 240	+ 180	+ 240	+ 180
VCM Cards
- IP400 VCM Cards	2	2	2	2
- IP500 VCM Cards	2	2	2	2
Maximum voice compression channels	128	128	148	138
Dimensions
Height x Width x Depth	73x445x365mm	73x445x365mm	73x445x365mm	73x445x365mm

IPO IP500 V2 CNTRL UNIT - Avaya 700476005