Enterprise: Voice Services

Enterprise Voice Services

Grande's core voice network is built on Nortel DMS 500 and soft-switching network. As one of the first competitive local exchange carriers to establish our own network in Texas after the 1996 Telecom Deregulation Act, we have a proven track record serving the communication needs of residential, business, and carrier customers. Most importantly, we are committed to providing the best customer and technical service while providing innovative solutions for your telecom needs.

Traditional services

Keep it simple with a comprehensive suite of local and long-distance voice services. Whether your business needs require a dedicated PRI or T-1 for local service with low flat-rate for long distance or an integrated bundle of local, long distance and Internet, Grande has a service designed with your business in mind.

Voice over IP Services (VoIP)

Are you facing the convergence of voice and data in your communication network? VoIP can increase efficiencies, reduce costs and simplify your network. The clear benefit of VoIP is the optimization of resources resulting from consolidating voice and data onto one network. To help your company realize these primary benefits and others, Grande has designed a VoIP service over a single Ethernet connection, allowing your enterprise to allocate bandwidth between voice and data while connecting directly to your existing data router and PBX or key phone System. By integrating our VoIP network and optical backbone, you can be sure that your VoIP services will be reliable and secure.


Our Mobility applications keep your employees connected to customers and colleagues by extending access and control of their Hosted Voice desk phones to their laptops and mobile devices.

This secure, remote connection to the office phone allows them the flexibility to work anywhere but still answer calls coming into the company.

Business Telephone Service

Flexible and efficient, Grande's business telephone service products have the versatility to meet your telephony needs. Whether you have a small office with traditional telephone lines, a mid-sized office with lines feeding a key phone system, or a large office with trunks into a PBX, we combine a wide selection of business phone features with the most effective method of delivery to offer you a competitive advantage.

Grande Telephone Number Service Types


Single telephone number with optional features, such as caller ID, call forwarding, speed dial, and more. These are common for small businesses, stand alone FAX, or alarm lines.

Multi Line Hunt Group

Multiple single lines grouped together with a single telephone number enabling the support of multiple incoming calls to the same number. Outbound calls all report the same telephone number. These are common for key phone or hybrid telephone systems.


Direct inward and outward dialed telephone numbers passing through a customer owned PBX which translate the DID/DOD into an extension off of the PBX.


Customized telephone numbers for incoming calls only. Telephone number is set for immediate fixed call forwarding to one or more "ring to" telephone numbers. These are common for service support, retail and advertised numbers.

Foreign Exchange

Telephone numbers for inbound and outbound calling from a different town or city than the physical address of the customer.

Grande Calling Service Area Types

Local Access

Provides unmetered, unlimited 2-way calling within a designated city limit or metropolitan area.

Long Distance

Metered, outbound calling beyond the local access area, either within the state of Texas (Intrastate), across the 48 contiguous United States and Canada (Interstate), or specific rates to Hawaii, Alaska and international.

Toll Free

The reverse of long distance with inbound calls to a designated toll free number. Forwarding to one or more "ring to" telephone numbers.

Grande Voice Product Types

Resale Line

Traditional single-pair loop start line provided by the incumbent telephone company on behalf of Grande. These augment other products offered and may have feature or setting's limitations.

Business Line

Traditional single-pair loop start line directly into an analog telephone or key phone system.

Enhanced Business Line

Business line delivered over a data connection and converted into single-pair loop start line directly into an analog telephone or key-phone system.

Enhanced Business Trunk

Business trunk delivered over a data connection directly into PBX or IP-PBX system.

Channelized T1

Any combination of business lines or trunks delivered over a T1 connection and converted into the desired line interface with a channel bank. Types of interfaces include loop start, ground start, or E&M.


A channelized T1 without a channel bank directly into a customer owned digital terminal interface (DTI) card within a keyphone, PBX or computer/server.


A primary rate interface (PRI) trunk group specifically for interconnection between a PBX or hybrid PBX and Grande's telephone switch. Configuration includes 1D channel (#24) for overhead and multiple B channels for trunking.

Originating Local Access T1

A customized trunk (T1 or PRIT1) with inbound-only local telephone numbers for a citywide or selective, statewide, inbound local calling.

Disaster Recovery

The PRI disaster recovery and overflow reroute product allows a customer to redirect all DID and 800# traffic pointed toward a Grande trunk group/super group to a designated ring-to-number (RTN), which may or may not also reside with Grande. The customer controls the RTN via call forward remote access on a designated, Grande-provided telephone number that is set up as next-in-route for the trunk group/super group.

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