Voice Network Engineer

HCL Technologies Limited; Lucknow; On-site; INR 700,000 - 1,100,000; Full time

Job summary

HCL Technologies Limited is seeking a skilled Cisco UC Engineer to manage and optimize Cisco IP telephony infrastructure in Lucknow. You will work with CUCM, call routing, and voice gateways, and contribute to complex UC deployments.

Ideal candidates will have hands-on experience with SIP signaling, Cisco Unity connections, and related UC components, while mentoring junior engineers and building strong client relationships to ensure successful project delivery.

Qualifications

• Experience with Cisco IP telephony network infrastructure.
• Good knowledge of call routing and media resources.
• Collecting and analyzing CUCM logs/traces.
• Collecting and analyzing voice gateway debugs.
• Solid understanding of voice protocols and signaling: H323, SIP (mandatory), MGCP, SCCP.
• Knowledge of key networking concepts - RTP/RTCP, DNS, LDAP, DHCP, NTP, TCP/UDP.
• Familiar with Unified Communications licensing and certificates.

Responsibilities

• Provide guidance and mentoring to other engineers.
• Build client relations with teams, customers, partners, and stakeholders.
• Handle Cisco UC related tasks and support engagements.
• Collaborate with peers to ensure reliable voice and UC infrastructure.

Skills

Cisco IP Telephony

Call Routing

SIP

H.323

Voice Gateways

Jabber

Webex Calling

DNS

LDAP

DHCP

NTP

RTP/RTCP

UC Licensing

Certificates

SCCP

Tools

Cisco UCS

VMware

Cisco Routers

Cisco Switches

Job description

Significant exposure/familiarity with the following platforms:

• Cisco Unified Communications Manager
• Cisco Unity Connection
• Cisco Voice Gateways/CUBE
• Expressways
• IM and Presence, Jabber, Webex Calling
• Good knowledge of Cisco Routers and Switches wrt to UC tech.
• Good knowledge of UCS, Virtualization / VMware wrt to UC technologies

Technical Skills

• Intermediate/Expert level experience in handling Cisco IP telephony Network Infrastructure.
• Good knowledge of call routing and media resources.
• Collecting and analyzing basic CUCM logs/traces.
• Collecting and analyzing voice gateway debugs.
• Good understanding of voice protocols and signaling: H323, SIP (mandatory), MGCP, SCCP
• Good knowledge on key networking concepts- RTP/RTCP, DNS, LDAP, DHCP, NTP, TCP/UDP,
• Good knowledge of Unified Communication Licensing and certificates.

Must possess solid communication skills:

• Build client relations (e.g., establish productive and reciprocal relationships with Team, Customers, Partners, and other stakeholders)
• Professional & concise (written & verbal)

Self-Motivated:

• Receives limited supervision
• Provides guidance and mentoring to other engineers