Which sidecars are compatible with 8x8?

Updated: 11/05/2024

Question

Which sidecars (expansion modules) are compatible with 8x8?

Applies To

Poly
Cisco
Yealink
Sidecars

Answer

Sidecar	Supported Handsets	Number of Keys Supported for Each Sidecar
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.

Additional Information

For more information, see Add and Configure Sidecars in 8x8 Admin Console.