About =ESSI=
Control Unit
3000 Phones
Cordless Phone
Voice Mail
 3000 Expansion


EZ Phone Systems


Mitel 3000 Sitemap

Mitel 3000 Control Unit

Mitel 3000 Phones

Mitel 3000 Expansion Modules

Mitel 3000 Voice Mail

Mitel 3000 Cordless Phone

Mitel Phone Accessories

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Company Info

Terms and Returns


32204 Castaic Rd
Suite P208
Castaic, CA 91384

☎ (800) 619-9566

☎ (661) 254-2228

Office Hours:
Monday thru Thursday
6:30AM to 5PM
6:30AM to 4PM

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About Us - ESSI

We are E System Sales, Inc.

In Business sense February 2001

ESSI has been a Trusted and Reputable Source your business can count on for your Store Fixtures and Business Equipment needs.

E System Sales, Inc. was launched as Certified Computer in February 2001 and incorporated in April 2005 with the goals of and has succeeded by providing services and consultations of what would be best for the customer, even if it meant sending the customer to another vender.

ESSI Warranty

ESSI Shall take care of all in warranty issues at no cost to the customer.

New equipment warranty is warrantied from the manufacturer for their warranty period.  Refurbished phone equipment warranty is taken care of soley by ESSI and not the manufacturer.

Terms and Returns

Equipment Returns

Equipment returned to E System Sales, Inc. for any reason other then warranty and failure shall be subject to a full refund of the purchase price, less the 20% re-stocking fee, shipping and handling fees, and charges for any installation services or services delivered. Equipment must be returned in its original packing and be ready for resale. All out of the box returns shall be on a 50% buy back basis only. No equipment shall be returned to E System Sales/EZ Phone Systems after 14 days of delivery. All WARRANTY and RETURN equipment returned to E System Sales, Inc. must have a RMA (Return Merchandise Authorization) number issued byE System Sales, Inc. All returned items without a RMA number will not be excepted by E System Sales, Inc.