Plantronics Electronic Hookswitch allows you to answer calls while away from the desk, electronically. No more mechanical lifters! For use with specific phone systems. See variation matrix, below, then variations to order.
$ 63.96 - Model #APS-11 (37818-11) compatible with:

Siemens: Optipoint
410; 420; 500; 600, OpenState40; 60; 80
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$63.96 - Model #APA-23 (38908-11) compatible with:

Alcatel: IP
Touch 428; 4038; 4068, Touch 4029; 4039, Octophon Open 140 IP; 141; 150 IP;
151; 160IP
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$63.96 - Model
#APT-31 (37820-11)
compatible with:

Avaya
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$63.96 - Model
#APC-41 (38350-11) compatible
with:

Cisco: 7942G;
7945G; 7962G; 7965G; 7975G
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$63.96 - Model
#APP-51 (38439-11)
compatible with:

Polycom:
IP320/321/330/331/335/430/450/550/560/650/670, VVX1500
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$63.96 - Model #APV-63 (38734-11) compatible
with:

Avaya: 5621;
6416D+M; 6424D+M; 9404; 9406; 9504; 9508; 9608; 9611; 9620; 9620L; 9621; 9630;
9640; 9641; 9650; 9670; 9650; 9670
Avaya: 1408;
1416; 1608; 1616; 2410
Avaya: 4630
Avaya: 5410
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$63.96 - Model #APV-66 (38633-11) compatible
with:

Avaya: 5620
Avaya: 2420;
4610/SW; 4620/SW; 4621SW; 4622SW; 4525SW
Avaya: 4630/SW
Avaya: 5420;
5610
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$63.96 - Model #APU-71 (83018-11) compatible
with:

Cisco: 8961;
9951; 9971
Avaya: 1120E;
1140E; 1150E; 1165E
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$20 - Model #RD-1 (78887-01) compatible
with:

Shoretel:
IP212K; 230; 2625; 560; 560(g); 565(g); 655
Toshiba