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AST Network(VOIP) Jun 9, 2020
Stafford, VA  
AST Network(VOIP)

Responsibilities: Provide tier III NOC support – VoIP Engineer role is to coordinate
strategies for defining, deploying, and maintaining the Enterprise IP telephony
voice communication architecture and its associated network connections and
component hardware. This includes managing all engineering projects for VoIP
initiatives, planning technologies and configuring and optimizing all VoIP/IP
telephone systems and services, both internally and those integrated with
Internet-based services. Also, the VoIP Engineers mandate will be to maintain SLAs
for all organizational IP telephony applications. Design and support VoIP
infrastructure and its associated software, including call management systems,
voice mail, and interactive voice response. Select, deploy, and utilize appropriate
tools for reporting and routing of IP telephony traffic on the network. Provide
leadership for implementing new VoIP products or services, as well as the
technical resources required to manage them. Collaborate with help desk to
resolve trouble tickets and mitigate end-user issues with VoIP hardware and/or
applications. Train and mentor junior engineers and other members of the
telecommunications department.
Monitor and identify capacity and performance issues for VoIP traffic to ensure
continued, uninterrupted operation of telephony systems. Collaborate with network
engineers or administrators to ensure that VoIP traffic does not interfere with or
hinder network data traffic.


Ten plus (10+) Working technical knowledge of VoIP/IP telephony systems,
software, and hardware, including knowledge of SIP, H.323, and TCP/IP protocols.
Strong understanding VoIP QoS issues and mitigation strategies. Direct experience
with Cisco routers and switches. Working knowledge of GigE, OSPF, BGP, EIGRP
and ATM is desirable.
Previous experience working on military bases/sites, including previous military
service highly desirable. VTC experience desirable. Strong VOIP experience
required to include the following:
• CUCM User management
• IP routing in Cisco Collaboration Solutions
• SCCP – Call Flows, Call states, Endpoint Types
• MGCP – Call Flows, Call states, Endpoint Types
• H.323 and RAS
• Voice and video CODECs
• Device registration and redundancy
• Call features Call Park, Call Pickup, BLF Speed dials, etc.
• Dial plans
• CUCM serviceability and OS administration – Database Replication
• CUCM Disaster Recovery
• Partition Management
• Bulk Uploads
• Call Admission Control
• SIP and H.323 trunks
• Cisco IOS-based call queuing
• CUBE – SIP profiles
• Cisco IOS dial plan
• Quality of Service and Security in Cisco Collaboration Solutions
• QoS: classification and marking
• Cisco Unity Connection
• Manage, maintain and monitor VoIP/VTC infrastructure.
• Deploy, configure, and troubleshoot eventually 500K+ Cisco IP phones for DoD
• Install, configure, and troubleshoots voice infrastructure, including the Unified
Contact Center Express, Cisco Call Manager, Cisco Unity Connection, IVR, CER,
Unified Communication and other voice platforms.
• Provide Expert level technical support for operational and troubleshooting
support of VoIP infrastructure


Bachelor's Degree in computer and/or networking field preferred. CCNP required,
CCIE preferred.

Strong communications, writing and editing skills needed to transfer information to
individuals involved in the networking process. Strong problem solving and
troubleshooting skills. Ability to work in an organized fashion with focus on
documented activity. Flexibility to occasionally work an unusual schedule required.
Positive attitude and high initiative.

IAT-II / GSEC; Security+ CE; SSCP or CCNA-Security
Secret Clearance Required
Operating System Certification (Cisco, Brocade, Juniper, etc.) CCNP required,
CCIE preferred.
ITIL v3 Foundations Preferred

09:00-17:00, (9a-5p) Mon-Fri. (DAY SHIFT); Rotational on-call.
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