The mission of the Network Division's Voice Systems Unit is to provide superior voice telecommunications service. The unit manages seven (7) statewide voice contracts, assists agencies with project management and technical expertise, and reviews vendor-generated invoices. The Voice Systems Unit also manages nineteen (19) PBXs that are located within Multi-Service Centers (MSCs). Additionally, the unit manages both the Baltimore State Office Complex and the Annapolis Complex PBXs. The Baltimore and Annapolis complex PBXs provide telecommunications services for more than 16,000 users.
A major goal of the Voice Systems Unit is to connect most of the 350+ statewide PBXs by using networkMaryland(TM) as a voice transport infrastructure. This strategy will reduce long distance, local call and circuit costs for State agencies. This will begin a phased approach for the deployment of VoIP.
VoIP Carrier Connections via SIP trunking concurrent call paths (CCP).
Features and Benefits
Next generation carrier connection through Session Initiated Protocol (SIP) trunks to a customer owned VoIP communication systems.
Unlimited Local and Domestic Long Distance Calls Included
Initial SIP Firewall (SBC) setup included
Supports for faxing over IP (FoIP)
Redundancy with multiple service providers and links
Ability to easily add or remove SIP trunks
Alan J. SabolAlan J. Sabol410-697-9695
Status: Currently offered
Notes: The service is available to any agency connected to the ESSB network.
Before service can be offered the client must meet the following requirements:
This section outlines the area of responsibility between the provider (DoIT) and the customer.
Configuration of SIP trunks to route to the customer’s network
Modification of the DoIT managed SBC
Out of Scope:
Programming of customer owned VoIP communication system and voice mail systems
Installation of premise wiring
Modification of any equipment that is directly connected to the Customer’s network
Validating all provided network information is correct
Customer is responsible for securing their own network
Ensuring all network settings are properly configured to pass voice traffic
Arranging meetings with third-party vendors when required
Supporting their data network and troubleshooting VoIP issues to the network demarcation (DMARC)
100 Community Place, Crownsville, MD 21032
300-301 West Preston Street, Baltimore MD 21201
410-697-9700 - Dial 7-1-1 to place a call through Maryland Relay