Which sidecars are compatible with 8x8?

Poly VVX Sidecar 28-Key (Color)

• VVX 300,301,310,311

• VVX 400,401,410,411

• VVX 500,501

• VVX 600,601

• Each sidecar allows three display pages with 28 keys on each; (3 x 28) = 84 keys per sidecar.

• Maximum of three sidecars and up to nine display pages; 252 keys total.

• Any unused button can be used for speed dial on the attached sidecars.

Poly VVX Sidecar 40-Key (Paper Label)

• VVX 300,301,310,311

• VVX 400,401,410,411

• VVX 500,501

• VVX 600,601

• Each sidecar allows one display page with 40 line keys (1x 40) = 40 per sidecar.

• Maximum of three sidecars and up to 120 line keys on paper display.

Poly VVX EM50 Sidecar

• VVX 450

• Each sidecar allows three display pages with 30 line keys on each; (3 x 30) = 90 keys per sidecar.

• Maximum of two sidecars and up to six display pages; 180 keys total.

Poly Edge EM 50 Expansion Module

• Edge E500

• Edge E400

• Each sidecar allows three display pages with 22 line keys on each; (3 x 22) = 66 keys per sidecar.

• Connect up to two sidecars with the E500 series and one with the E400 series.

Yealink EXP40 Expansion Module

• T46S

• T48S

• T46G

•  T48G

• Allows two display pages with 20 line keys on each; (2 x 20) = 40 keys per sidecar.

Yealink EXP43 Expansion Module

• T43U

• T46U

• T48U

• Allows three display pages with 20 line keys on each; (3 x 20) = 60 keys per sidecar.

Yealink EXP50 Expansion Module

• T53

• T53W

• T54W

• T57W 

• Each sidecar allows three display pages with 20 line keys on each; (3 x 20) = 60 keys per sidecar.

• Maximum of three sidecars daisy chained; 180 keys total.

Cisco IP Phone 8800 Sidecar

• 8851

• 8861

• Each sidecar allows two display pages with 18 keys each; (2 x 18) = 36 keys per sidecar.

• Connect up to three sidecars with the 8861 and up to two with the 8851.

Cisco IP Phone 8851/8861 Key Expansion Module

• 8851

• 8861 

• Each sidecar allows two display pages with 14 keys each; (2 x 14) = 28 keys per sidecar.

• Connect up to three sidecars with the 8861 and up to two with the 8851.