ESI Phone Switching Systems & PBXs

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Telecom Systems
- Phone Switching Systems & PBXs
- Business Phone Sets & Handsets
- Conference Equipment
- Multiplexers
- Music On-Hold Systems
- Other Telecom Systems
- Voicemail & Voice Processing Systems

124 Results

ESI Communications Server ESI-200 w/G2 HS 612 Cards & 48 KEY FD DFP Phones
Pre-Owned · ESI
C $1,175.55
or Best Offer
Q+^K & *XZ H 8] w.?!|X5/ $S p o n s o r e d
ESI Communications Server G2 HS 612 Port Card VoIP 5010-0614
Pre-Owned · ESI
C $172.86
or Best Offer
Q+^ &*0 Y] w.?U !U|/ V $FVS p o n s o r e d
ESI 50 Communications Server Phone System, Lc4758-22
Pre-Owned · ESI
C $570.49
Was: C $760.65was - C $760.65
C $100.45 shipping
H+^ &2 * ] w.?!|JB MX/ NC P $S p o n s o r e d
ESI IVX 128 684 Port Card 5010-0536
Pre-Owned · ESI
C $62.24
Was: C $103.73was - C $103.73
or Best Offer
C $34.71 shipping
+^ &*MO ] w. ?!7|B/ 21 I4$S p o n s o r e d
Refurbished ESI 5000-0526 Digital Cordless II Phone
Refurbished · ESI
C $622.35
or Best Offer
+^V &J *F ] w1. ?!|D/ G SP $
ESI ESI-200 Communications Server Mother Board business phone system- Used
Pre-Owned · ESI
C $124.46
or Best Offer
C $40.27 shipping
I+O ^ D&*5 ] w.? 86!| / R6$
ESI IVX S-Class Phone System Expansion Cabinet Generation II
Pre-Owned · ESI
C $124.47
Was: C $207.45was - C $207.45
or Best Offer
C $47.74 shipping
C0 8+^ 3&* ] 16w.? !WH 6|H / $
ESI-50 COMMUNICATION SERVER
Parts Only · ESI
C $138.30
C $68.39 shipping
0+^5 &* F6 ] wPI F.C?!|/ 5 $
ESI IVX S-Class Cabinet, ESI IVX 482 PC Expansion CARD GEN2 , 2hr vmail
Pre-Owned · ESI
C $344.37
C $102.22 shipping
55 8X +^ &*K A] Nw.?!S|/ CG $
ESI 5000-0545 RFID Reader IP EPM Presence Management Control New In original Box
Brand New · ESI
C $690.12
or Best Offer
+^ &* ] w.F?V! 4V 5|/H $ 9
ESI SIP 24 Card 5010-0631 w/ 5010-0603 & SIP CF *Refurbished*
Refurbished · ESI
C $413.52
or Best Offer
+^ &*B ]U 8w.X 0?!1 |/ $99
ESI Repeater 5000-0530
New (Other) · ESI
C $269.69
or Best Offer
VE+^ & NX* ] PV wE.V ?!S|O / $
ESI 5010-0583 E2 612 PC Card *Refurbished*
Refurbished · ESI
C $136.92
or Best Offer
+^3 &5* ] FwT. 3?B !3|N/ O $
ESI IVX128 684 PORT CARD 5010-0136
Pre-Owned · ESI
C $62.24
Was: C $103.73was - C $103.73
or Best Offer
C $34.71 shipping
R+^ 9 6&*P ] U Z w.YB?! Y7 |/ $S p o n s o r e d
ESI IVX E-Class Lc1805-22
Parts Only · ESI
C $129.66
Was: C $172.88was - C $172.88
C $47.92 shipping
+TH Y^P &* ] wUS. ?!6R |/ $S p o n s o r e d
ESI C-plus Digital Phone System Lc2599-22
Parts Only · ESI
C $129.66
Was: C $172.88was - C $172.88
C $57.10 shipping
+NT^ &* ] wY.?!|/ $Z S p o n s o r e d
ESI 12R12EL 5010-0616 G2 HS IVC Port Card - 5000-0460 *Refurbished*
Refurbished · ESI
C $413.52
or Best Offer
+^99 9&*9 ] wR.?!P M3 |/B $
ESI 5010-0614 G2 HS 612 Port Card *Refurbished*
Refurbished · ESI
C $206.07
or Best Offer
+^ &*0 N PP] w 8U. ?!|/ $AL
ESI 5010-0616 CS IVC 12R12EL PC M Card w/ Metal Face Plate *Refurbished*
Refurbished · ESI
C $413.52
or Best Offer
+^ &*X0 ] w.? R8 V!|3/ $
ESI 5000-0498 Communications Server DLC 82 PRI *Refurbished*
Refurbished · ESI
C $413.52
or Best Offer
+Y^ 4 D8&* N] wR.? !|/VE L$
ESI 5010-0613 G2 HS 684 Port Card w/ Plastic Face Plate *Refurbished*
Refurbished · ESI
C $344.37
or Best Offer
+^ &* 7]F YD Sw.X? 4!W| /YT $
ESI 600 200 IVX Mirrored Memory Module M3
New (Other) · ESI
C $48.34
C $21.87 shipping
+^ YB C3 AW 4J&* ] wL. ?!|/ $
ESI Server DLC82 PRI 23 Channel x 8 Digital x 2 Analog Card (5000-0498)
Refurbished · ESI
C $413.52
or Best Offer
C $41.56 shipping
L5+ 3^ J D8&* UU ] wH.?!|/ $
ESI 5010-0583 E2 D12 Port Card *Refurbished*
Refurbished · ESI
C $136.92
or Best Offer
+^ 68 &*MK ] 4Rw.?!| /6H $
ESI 5000-0374 IVX E2 A12 vPC Card - 5010-0597 *Refurbished*
Refurbished · ESI
C $344.37
or Best Offer
3Y +F^ &*N ] wJ.4?! |Q/ N T$
ESI C-PLUS MODEL: IVX S- CLASS PHONE SYSTEM
Pre-Owned · ESI
C $269.67
ZK+ ^ &* ] wZ.Q? !K|/E O$F
ESI 5000-0348 E2 DLC 12 PC R Card 5010-0588 *Refurbished*
Refurbished · ESI
C $206.07
or Best Offer
B+2 J8^ &5*A ] wKN. G?!|/4 $
ESI IVX S-CLASS ALL IN ONE DIGITAL PHONE SYSTEM Untested No Power Supply
Parts Only · ESI
C $88.15
Was: C $103.71was - C $103.71
S+^ &B* Y] wU. R?!|/2 $1
ESI (5010-0613) G2 HS 684 Port Card Assembly
Pre-Owned · ESI
C $262.76
or Best Offer
+^ Y6&* B 9] 1wP F.?!|/ N$ S p o n s o r e d
ESI IVX E2 684 Port Card 5010-0582
Pre-Owned · ESI
C $62.24
Was: C $103.73was - C $103.73
or Best Offer
C $69.45 shipping
+^ B&L* ZC Y0 ] Fw.?!|/D $S p o n s o r e d
ESI IVX 128 B1 612 PBX Phone System FOR PARTS/REPAIR ONLY, NO Adapter, NO HDD
Parts Only · ESI
C $82.98
C $60.42 shipping
63+^ C I SL& * ]XH w.?!|/ O$S p o n s o r e d
ESI 5010-0617 Rev A G2 HS A12 Port Card
Pre-Owned · ESI
C $207.44
or Best Offer
H+E^ &* ] w3M.?! |/ R$1 CXS p o n s o r e d
ESI E2 DLCo DLC0 PC T1 PRI Line Card Communications Server 100 50000373
Refurbished · ESI
C $413.52
or Best Offer
C $32.64 shipping
+^ QC&* 1B ] Lw.?!P|/ 0$B
ESI 5010-0583 E2 D12 Port Card *Refurbished*
Refurbished · ESI
C $138.30
or Best Offer
+V^E &* ] w.DK?!|/ PP $L
ESI IVX E-Class Gen 2 Digital Phone System W/ NSP & LNC, 684, 612 Port & VM Card
Pre-Owned · ESI
C $248.93
or Best Offer
C $94.13 shipping
V8+^ & 5* 0 N6] Bw1.?! O|/H $
ESI 5010-0615 CS DLC 12 PC 5000-0420 w/ Plastic Face Plate *Refurbished*
Refurbished · ESI
C $413.52
or Best Offer
+5K^ &*A B Q]E w 3.?!|/ 7$
ESI Communications Server ESI-100 Phone System DEMO UNIT
Pre-Owned · ESI
C $138.29
C $85.52 shipping
+VR^ &*H ]R w1.G ?!|1Z/ $
ESI 5010-0588 IVX E2 DLC12 Port Card w/ 5010-0603 *Refurbished*
Refurbished · ESI
C $622.35
or Best Offer
+^J &R * ] MwU.? !|Q5/ G $7
esi IVX C-Class Gen II Digital Phone System
Pre-Owned · ESI
C $82.97
or Best Offer
C $32.57 shipping
+^A &J * 68] w.?!|J5/ $ 33 S p o n s o r e d
ESI G2 HS DLC12 PORT CARD ASSY 5010-0615 REV A
Pre-Owned · ESI
C $55.31
or Best Offer
+0L 4^ 1 &* ] RW wUH Y.?!N|/ $S p o n s o r e d
ESI IVX 128 612 PC card 5010-0540*Refurbished*
Refurbished · ESI
C $206.07
or Best Offer
+^Z &*F ] w.?IZ! |/ OI$ R
ESI IVX 482 PC CARD GEN 1 5010-0569 / 5000-0257 Expansion Card *Refurbished
Refurbished · ESI
C $546.29
or Best Offer
C $62.08 shipping
+NG ^ &*DQ ] w.UD ?!L|1/ $
ESI 5010-0540 D12 PC Card *Refurbished*
Refurbished · ESI
C $136.92
or Best Offer
+^C M&* Q9 9U ] 05w. ?Q !|/ $
ESI IVX 128 PLUS Phone sytem with Hard Drive #1 (See Desc) AS IS
Pre-Owned · ESI
C $136.92
C $34.33 shipping
+U^ &4 Y* J] K7 w2.?!|/ O$
ESI IVX 482 PC CARD GEN 1 Expansion Card 5010-0569 5000-0257
Pre-Owned · ESI
C $260.00
or Best Offer
+^ 91&* ] ZZw.?! 6|A/ $ Z
ESI 5010-0540 IVX 612 (GEN 1) PC Card (Refurbished)
Refurbished · ESI
C $150.75
or Best Offer
C $41.81 shipping
RO +^ 9&B* U]Y 7Mw. ?!|58/ $
ESI IVX S-Class Phone System
Parts Only · ESI
C $69.15
C $28.13 shipping
9+2 ^ G2 OW& * 8K] w.?!| / $
ESI 5000-0905, ESIP Expansion EXPT1/PRI
New (Other) · ESI
C $1,118.50
or Best Offer
C $54.13 shipping
+^0 N&* ] CR PZw.? ZJ !|9/ $
NEW ESI 900 CF Compact Flash 5000-0612
Brand New · ESI
C $136.92
Only 1 left!
ZR X+6^ & A* ]H w. ?T!|/ O$
ESI Server DLC82 PRI 23 Channel x 8 Digital x 2 Analog Card (5000-0498)
Refurbished · ESI
C $242.03
or Best Offer
C $57.26 shipping
+6A^ &* ] JHw.? !Q|/ K$ C
ESI 5000-0611 T1/PRI Module - BRAND NEW, UNOPENED BOX!
Brand New · ESI
C $1,092.57
or Best Offer
V+^ &*N ] CCw. ?N!H| /U N V$
ESI 5010-0603 Hot Swap PC Adapter *Refurbished*
Refurbished · ESI
C $53.94
or Best Offer
+F^ &*W ]4 w.M?!|/ $U1
ESI (5010-0631) SIP 8 Card w/(5010-0603) "Hot-Swap" Adapter (200 Series)
Pre-Owned · ESI
C $246.17
or Best Offer
C $55.98 shipping
+^P8 3K&* ] wY.?!F |7Y / $
ESI 600 Expansion Cabinet
Pre-Owned · ESI
C $124.46
or Best Offer
+^H P&* C8] Sw.?F D7!|/ U$
ESI T1/PRI Expansion Card 5010-0654 for ESI IP 900 Server
Pre-Owned · ESI
C $345.75
or Best Offer
C $49.53 shipping
+0^R &* ] 0w.?2!| HO FP / $
ESI Communications Server ESI-50 Phone System w/ 4GB CF Card (6-Port, 30 Hour)
Pre-Owned · ESI
C $345.75
or Best Offer
C $68.78 shipping
K+L 20^ &* ]JZ w.? !|/S $7
esi IVX C-Class Gen II Digital Phone System with Power Adapter
Pre-Owned · ESI
C $41.49
C+Z ^ F&*8 ] UI wDW W8. ?!|/ $
ESI 5010-0583 E2 600 PC Card *Refurbished*
Refurbished · ESI
C $123.09
or Best Offer
+F0^ X&* 0] LwR. ?W8! Y|Z/ $
ESI IVX S-Class Phone System Expansion Cabinet w/ 6HR Voicemail Card
Pre-Owned · ESI
C $311.18
C $41.39 shipping
P+^ &* ] Aw.?!|/ 8$V 5
ESI IP900 IP 900 FXO 4-FXO 5000-0603 4 Port Analog CO Line Module 4 FXO
Pre-Owned · ESI
C $135.53
or Best Offer
C $33.36 shipping
+P^ &W* ] w.?! |M1/ 30 $ V0

ESI Phone Switching Systems & PBXs

Shop by Category

124 Results

ESI Communications Server ESI-200 w/G2 HS 612 Cards & 48 KEY FD DFP Phones

ESI Communications Server G2 HS 612 Port Card VoIP 5010-0614

ESI 50 Communications Server Phone System, Lc4758-22

ESI IVX 128 684 Port Card 5010-0536

Refurbished ESI 5000-0526 Digital Cordless II Phone

ESI ESI-200 Communications Server Mother Board business phone system- Used

ESI IVX S-Class Phone System Expansion Cabinet Generation II

ESI-50 COMMUNICATION SERVER

ESI IVX S-Class Cabinet, ESI IVX 482 PC Expansion CARD GEN2 , 2hr vmail

ESI 5000-0545 RFID Reader IP EPM Presence Management Control New In original Box

ESI SIP 24 Card 5010-0631 w/ 5010-0603 & SIP CF *Refurbished*

ESI Repeater 5000-0530

ESI 5010-0583 E2 612 PC Card *Refurbished*

ESI IVX128 684 PORT CARD 5010-0136

ESI IVX E-Class Lc1805-22

ESI C-plus Digital Phone System Lc2599-22

ESI 12R12EL 5010-0616 G2 HS IVC Port Card - 5000-0460 *Refurbished*

ESI 5010-0614 G2 HS 612 Port Card *Refurbished*

ESI 5010-0616 CS IVC 12R12EL PC M Card w/ Metal Face Plate *Refurbished*

ESI 5000-0498 Communications Server DLC 82 PRI *Refurbished*

ESI 5010-0613 G2 HS 684 Port Card w/ Plastic Face Plate *Refurbished*

ESI 600 200 IVX Mirrored Memory Module M3

ESI Server DLC82 PRI 23 Channel x 8 Digital x 2 Analog Card (5000-0498)

ESI 5010-0583 E2 D12 Port Card *Refurbished*

ESI 5000-0374 IVX E2 A12 vPC Card - 5010-0597 *Refurbished*

ESI C-PLUS MODEL: IVX S- CLASS PHONE SYSTEM

ESI 5000-0348 E2 DLC 12 PC R Card 5010-0588 *Refurbished*

ESI IVX S-CLASS ALL IN ONE DIGITAL PHONE SYSTEM Untested No Power Supply

ESI (5010-0613) G2 HS 684 Port Card Assembly

ESI IVX E2 684 Port Card 5010-0582

ESI IVX 128 B1 612 PBX Phone System FOR PARTS/REPAIR ONLY, NO Adapter, NO HDD

ESI 5010-0617 Rev A G2 HS A12 Port Card

ESI E2 DLCo DLC0 PC T1 PRI Line Card Communications Server 100 50000373

ESI 5010-0583 E2 D12 Port Card *Refurbished*

ESI IVX E-Class Gen 2 Digital Phone System W/ NSP & LNC, 684, 612 Port & VM Card

ESI 5010-0615 CS DLC 12 PC 5000-0420 w/ Plastic Face Plate *Refurbished*

ESI Communications Server ESI-100 Phone System DEMO UNIT

ESI 5010-0588 IVX E2 DLC12 Port Card w/ 5010-0603 *Refurbished*

esi IVX C-Class Gen II Digital Phone System

ESI G2 HS DLC12 PORT CARD ASSY 5010-0615 REV A

ESI IVX 128 612 PC card 5010-0540*Refurbished*

ESI IVX 482 PC CARD GEN 1 5010-0569 / 5000-0257 Expansion Card *Refurbished

ESI 5010-0540 D12 PC Card *Refurbished*

ESI IVX 128 PLUS Phone sytem with Hard Drive #1 (See Desc) AS IS

ESI IVX 482 PC CARD GEN 1 Expansion Card 5010-0569 5000-0257

ESI 5010-0540 IVX 612 (GEN 1) PC Card (Refurbished)

ESI IVX S-Class Phone System

ESI 5000-0905, ESIP Expansion EXPT1/PRI

NEW ESI 900 CF Compact Flash 5000-0612

ESI Server DLC82 PRI 23 Channel x 8 Digital x 2 Analog Card (5000-0498)

ESI 5000-0611 T1/PRI Module - BRAND NEW, UNOPENED BOX!

ESI 5010-0603 Hot Swap PC Adapter *Refurbished*

ESI (5010-0631) SIP 8 Card w/(5010-0603) "Hot-Swap" Adapter (200 Series)

ESI 600 Expansion Cabinet

ESI T1/PRI Expansion Card 5010-0654 for ESI IP 900 Server

ESI Communications Server ESI-50 Phone System w/ 4GB CF Card (6-Port, 30 Hour)

esi IVX C-Class Gen II Digital Phone System with Power Adapter

ESI 5010-0583 E2 600 PC Card *Refurbished*

ESI IVX S-Class Phone System Expansion Cabinet w/ 6HR Voicemail Card

ESI IP900 IP 900 FXO 4-FXO 5000-0603 4 Port Analog CO Line Module 4 FXO

More to explore

ESI SIP 24 Card 5010-0631 w/ 5010-0603 & SIP CF Refurbished

ESI 5010-0583 E2 612 PC Card Refurbished

ESI 12R12EL 5010-0616 G2 HS IVC Port Card - 5000-0460 Refurbished

ESI 5010-0614 G2 HS 612 Port Card Refurbished

ESI 5010-0616 CS IVC 12R12EL PC M Card w/ Metal Face Plate Refurbished

ESI 5000-0498 Communications Server DLC 82 PRI Refurbished

ESI 5010-0613 G2 HS 684 Port Card w/ Plastic Face Plate Refurbished

ESI 5010-0583 E2 D12 Port Card Refurbished

ESI 5000-0374 IVX E2 A12 vPC Card - 5010-0597 Refurbished

ESI 5000-0348 E2 DLC 12 PC R Card 5010-0588 Refurbished

ESI 5010-0583 E2 D12 Port Card Refurbished

ESI 5010-0615 CS DLC 12 PC 5000-0420 w/ Plastic Face Plate Refurbished

ESI 5010-0588 IVX E2 DLC12 Port Card w/ 5010-0603 Refurbished

ESI IVX 128 612 PC card 5010-0540Refurbished

ESI 5010-0540 D12 PC Card Refurbished

ESI 5010-0603 Hot Swap PC Adapter Refurbished

ESI 5010-0583 E2 600 PC Card Refurbished