Company Logo
ENTERPRISE IT INFRASTRUCTURE & CYBERSECURITY
Skip to content
Unified Communications (VoIP) | Microlines Infotech
verified Enterprise VoIP & Telephony Partner — Grandstream, Yeastar & Cisco Unified Communications
Telecom Engineering Desk: +91 98765 43210 arrow_forward
Home → Our Solution → Converged Network & Connectivity → Unified Communications (VoIP)

Unified Communications (VoIP)

Next-generation enterprise IP-PBX telephony, SIP trunking, multi-level IVR auto-attendants, and mobile softphone integration. Powered by Grandstream, Yeastar, Avaya, and Cisco Unified Communications Manager (CUCM), delivering crystal-clear HD voice (G.722), call recording, CRM integration, and seamless remote mobility.

call Enterprise IP-PBX & SIP Trunking Infrastructure smartphone iOS / Android Softphones & WebRTC Calling record_voice_over Multi-Level Interactive Voice Response (IVR) analytics Real-Time Call Analytics & CRM Sync (Salesforce/Zoho)
99.999% Five-Nines Telephony Uptime
HD Audio Crystal-Clear G.722 Voice
0.2s Ultra-Low Latency SIP Signaling
100% Mobile Softphone Remote Sync
TOPIC 01 // ENTERPRISE IP-PBX & SIP TRUNKING INFRASTRUCTURE

Grandstream, Yeastar & Cisco IP Telephony

Modernize your legacy analog telephony with high-density IP-PBX appliances and cost-effective SIP trunking. Our IP-PBX solutions support from 50 to 5,000 extension users, delivering high-definition G.722 voice quality, centralized call routing, automated call recording, and dual-server HA failover redundancy.

  • check_circle SIP Trunking integration connecting Jio, Airtel, and Tata Tele Services with zero call loss.
  • check_circle Encrypted call voice payload protection via SRTP (Secure RTP) and TLS signaling encryption.
  • check_circle High-Availability (HA) IP-PBX active-standby redundancy with instant sub-second failover.
Enterprise IP Phone & IP-PBX Server Rack
Grandstream & Yeastar High-Density Enterprise IP-PBX Systems
Customer Support Agent with Headset & Call Center Dashboard
Multi-Level IVR Auto-Attendant & CRM Call Synchronization Console
TOPIC 02 // MULTI-LEVEL IVR & CRM CALL CENTER INTEGRATION

Smart IVR Auto-Attendant & CRM Synchronization

Direct inbound callers instantly with multi-level Interactive Voice Response (IVR) auto-attendants and skills-based ACD call queues. Fully integrated with Salesforce, Zoho, SAP, and Hubspot CRM platforms, enabling instant incoming call pop-ups, automatic call logging, click-to-dial, and real-time supervisor wallboards.

  • check_circle Multi-level custom IVR tree with visual drag-and-drop call flow designer and holiday schedules.
  • check_circle Bi-directional CRM integration giving agents caller context before answering the line.
  • check_circle Automated call recording storage with searchable metadata and compliance archiving.
TOPIC 03 // MOBILE SOFTPHONES & WEBRTC REMOTE MOBILITY

iOS / Android Softphones & WebRTC Calling

Empower hybrid and remote workers with enterprise mobility. Using Grandstream Wave, Linkus, or Cisco Jabber softphone applications on iOS, Android, Windows, and macOS, employees can make and receive office extension calls anywhere in the world over 4G/5G or Wi-Fi without exposing personal phone numbers.

  • check_circle Cross-platform softphones with One-Number Reachability across desktop and smartphone.
  • check_circle Browser-based WebRTC client allowing client video conferencing and screen sharing without plugins.
  • check_circle Push Notification Service (PNS) ensuring instant incoming call alerts while conserving battery life.
Mobile Softphone Interface on Smartphone
Mobile Extension Softphone & WebRTC Remote Mobility App

Engineering Specifications Matrix

Concurrent SIP Calls Up to 2,000 Concurrent Calls / 5,000 Registered IP Extensions (Scaleable Architecture)
Voice Codecs Supported G.722 (HD Wideband), G.711u/a, G.729A/B, Opus, Speex, H.264 Video Codec
Protocol Support SIP (RFC 3261), IAX2, SRTP, TLS, WebRTC, FXO/FXS, E1/T1 PRI ISDN Gateways
Storage & Recording Integrated 1TB NVMe Call Recording Storage with NAS / S3 Automated Archiving
Integration Capabilities RESTful API, Webhooks, Salesforce, Zoho, Microsoft Teams Direct Routing, LDAP / Active Directory
Redundancy & Failover Dual Active-Standby IP-PBX Cluster, PSTN FXO Trunk Failover on Power Loss
Client Support Gigabit IP Desk Phones, Executive Color Console Phones, iOS/Android Apps, WebRTC Browsers

Related VoIP Appliances & Executive Endpoints

Grandstream UCM appliances, Yealink color IP desk phones, Yeastar VoIP systems, and CRM integration services.

Grandstream UCM6308 Enterprise IP-PBX Appliance

Grandstream UCM6308 IP-PBX

Enterprise Telephony Appliance

Supports up to 3,000 users, 450 concurrent calls, 8 FXO ports, 8 FXS ports, and built-in WebRTC video conferencing.

Yealink SIP-T54W High-End Color IP Desk Phone

Yealink SIP-T54W IP Phone

Executive Color IP Endpoint

4.3″ color LCD display, 16 SIP accounts, built-in Wi-Fi & Bluetooth, Dual Gigabit Ethernet ports, and Opus HD voice.

Yeastar P570 VoIP PBX System with FXO/PRI Modules

Yeastar P570 VoIP System

Modular Enterprise IP-PBX

Supports 300 to 500 extensions, 60 to 120 concurrent calls, Linkus softphone app suite, and Call Center features.

SIP Trunking Setup & CRM Integration Audit Package

SIP Trunk & CRM Audit

Telephony Integration Package

Includes legacy PBX line audit, SIP trunking migration, Salesforce/Zoho CTI integration, and QoS network tuning.

Frequently Asked Questions

Technical answers regarding SIP trunking cost savings, mobile softphone functionality, G.722 HD audio quality, IP-PBX HA redundancy, and CRM CTI popups.

1. How does SIP Trunking reduce enterprise telecom call expenses compared to traditional PRI lines?
▼
Traditional PRI lines require fixed bundles of 30 channels with high monthly line rental fees regardless of usage. SIP Trunking routes voice calls over your existing fiber internet connection, eliminating physical line rentals and enabling dynamic channel scaling. SIP trunks significantly reduce long-distance and inter-office call costs (making inter-branch calls free).
2. How do mobile softphone applications work for remote and work-from-home employees?
▼
Mobile softphones (such as Grandstream Wave or Linkus) connect securely to the central IP-PBX via encrypted TLS/SRTP tunnels. When a customer calls an employee’s office extension number, both their desk phone and smartphone ring simultaneously. Employees can make outgoing business calls displaying the main office Caller ID without exposing personal cell numbers.
3. What is the difference between G.722 HD Wideband Audio and standard G.711 voice codecs?
▼
Legacy PSTN lines use the G.711 codec, which caps audio frequency at 3.4 kHz, resulting in muffled sound. The G.722 HD Wideband codec sample rate is double (50 Hz to 7.0 kHz), capturing natural speech nuances and significantly improving voice clarity, reducing listener fatigue during long conference calls.
4. How does IP-PBX High-Availability (HA) active-standby clustering ensure 99.999% uptime?
▼
In an HA IP-PBX deployment, two identical hardware appliances operate in a heartbeat cluster. The primary server handles active registration and calls while real-time database synchronization mirrors call logs, voicemails, and SIP states to the standby unit. If the primary hardware fails, the standby unit automatically assumes the Virtual IP (VIP) in less than 1 second.
5. How does CRM integration (CTI) improve customer support agent efficiency?
▼
Computer Telephony Integration (CTI) links the IP-PBX with your CRM (Salesforce, Zoho, Keka). When an inbound call arrives, a browser screen-pop immediately displays the caller’s purchase history, active support tickets, and account manager notes before the agent picks up. Agents can also initiate calls with a single click inside CRM records.

Upgrade Your Enterprise Telephony to IP-PBX

Get a free SIP trunking cost audit, softphone demo, and BOQ quote from Microlines telecom engineers.

Get custom BOQ pricing and architectural support from Microlines engineers.