The Grandstream GXW42XX Gateway is Custom Order. Custom Order products may not be returned for a refund. The GXW42XX can be used as a PBX phone system without connecting to a customer supplied analog PBX. Successful integration of the GXW42XX with a customer supplied PBX phone system will require a competent technician certified by the PBX manufacturer. TSS Solutions does not provide technical support for customer supplied hardware or software even when connected to TSS Solutions products or services.
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