What is VoIP and why should I replace my analog PBX?

VoIP (Voice over IP) carries business calls over an IP network instead of the analog PSTN. It can replace a physical PBX with a cloud or hybrid solution using HD codecs, virtual numbers and redundant SIP trunks. We compare the business case against your current invoice and traffic profile before estimating savings.

How much can I save by migrating from PSTN to VoIP?

Savings depend on line rental, traffic, long-distance charges, PBX maintenance, licenses, trunks and support. We review the current invoice and provide a TCO comparison using disclosed assumptions and current rates; there is no universal savings percentage.

Can I keep my current phone numbers when moving to VoIP?

Yes. We manage applicable number portability and plan coexistence, testing and a cutover window to reduce interruption risk. Eligibility and timing depend on the carrier and the number documentation.

Which VoIP platforms and SIP trunks does BITS deploy?

Platforms: 3CX, Wildix, Microsoft Teams Phone, Cisco Webex Calling, Zoom Phone, FreePBX/Asterisk and FortiVoice. SBCs: AudioCodes, Ribbon and Sangoma. Redundant SIP trunks with tier-1 carriers priced in MXN and geographic backup for high availability. We choose the stack based on extension count, required integrations and budget.

Is VoIP HD voice quality really better than my analog line?

VoIP can use HD codecs such as G.722 or Opus. Effective quality depends on the endpoint, codec, carrier and network; we measure MOS, jitter and loss during the pilot and define applicable objectives by contract.

Does VoIP still work if the Internet or power goes down?

We can design dual links, an alternate SIP carrier, mobile forwarding and UPS coverage when the scope requires it. These controls reduce risk, but effective continuity depends on the architecture, tests and contracted services.

How does VoIP integrate with my CRM, ERP and service desk?

We integrate click-to-call and screen-pop with Salesforce, HubSpot, Dynamics 365, SAP, Zoho, Odoo and proprietary CRMs through APIs or native connectors. Every call creates an automatic record with duration, recording, transcript and notes on the customer record — no manual data entry.

What support does BITS provide after the VoIP rollout?

The contracted scope can include a bilingual 24/7 NOC, call-quality monitoring, an end-user help desk, extension management and usage reports. Applicable service objectives and credits are documented in the selected plan and contract.

Enterprise VoIP · HD SIP trunks · Mexico

Enterprise VoIP with HD SIP trunks and comparable total cost

Cloud or hybrid IP telephony with HD quality, number portability, mobile softphone and CRM integration. Replace your analog PBX with a VoIP operation managed 24/7 by BITS from Mexico — no PSTN line rental, no long-distance surprises.

Get a VoIP quote Calculate savings vs PSTN

TCOComparison with your current invoice

HDG.722 / Opus voice quality

24/7BITS support in ES & EN

Isometric illustration of enterprise VoIP: HD IP phone, laptop softphone, mobile app, headset and PBX rack connected by SIP trunks, with call quality metrics and active SIP trunks.

ILLUSTRATIVE SCENARIO · NOT A CUSTOMER CASE

When a legacy PBX limits mobility, support and visibility.

Composite example: an operation paying for line rental, long distance and legacy PBX maintenance can assess VoIP, SIP trunks and softphones. Savings, quality and the migration plan are validated against the invoice, network and a technical pilot.

The real cost of staying on PSTN

Line rental, per-minute long distance, maintenance on a discontinued PBX and zero visibility by extension or department.

The cost of migrating to VoIP badly

No SBC, no QoS, no formal portability or a single-carrier SIP trunk — voice breaks up and the bill goes up.

BITS VoIP, managed end to end

3CX, Wildix, Teams Phone or FreePBX with redundant SIP trunks, IFT portability, CRM integration and a 24/7 NOC with SLA.

VoIP demo · simulated data

Example

Active VoIP extensions

To measure

Average MOS

By scope

Managed SIP trunks

By contract

Availability objective

voip :: 3cx × wildix × teams phone × freepbx · Mexico · bilingual support

VoIP comparison: 3CX · Wildix · Teams Phone · FreePBX

We send you a PDF with features, licensing and net MXN pricing — no long forms.

Download the comparison

ANALOG PBX vs VOIP

Legacy PSTN telephony vs. BITS enterprise VoIP

How your bill, your mobility and your visibility change when voice runs over IP instead of analog lines.

Comparable telephony TCO

SIP trunks, licensing, traffic and support are itemized in MXN and compared against the current invoice.

Cloud or hybrid telephony, no physical PBX

3CX, Wildix, Teams Phone, FreePBX or Webex Calling hosted — no hardware to maintain and no discontinued parts.

Mobile softphone + an extension that follows you

Same number on IP phone, laptop and mobile. iOS/Android apps with visual voicemail, transfer and device hand-off.

Smart IVR, recording and CRM

Dynamic menus, hunt groups, queues with music on hold, recording with configurable retention, AI transcription and CRM screen-pop.

SIX KEY CAPABILITIES

Enterprise VoIP — much more than swapping the phone line

SIP trunks, IVR, recording, softphone, CRM integration and HD quality monitored 24/7 — all managed by BITS.

Redundant HD SIP trunks

SIP trunks with dual carriers, automatic failover and DID numbers across Mexico with IFT portability.

MX numbers 55 / 614 / 81 / 33
Portability with an agreed cutover and rollback
Dual carrier + SBC

Cloud or hybrid PBX

3CX, Wildix, Microsoft Teams Phone, FreePBX/Asterisk or Webex Calling — hosted or on-prem depending on your case.

No obsolete hardware
Managed updates
Scales per extension

IVR, hunt groups and queues

Dynamic multi-level menus, smart call distribution, music on hold and holiday schedules.

Multi-level IVR
Skill-based routing
MX schedules and holidays

Mobile and desktop softphone

iOS/Android app plus Windows/Mac softphone. Same extension, visual voicemail and device hand-off.

iOS · Android · Windows · Mac
Visual voicemail
Live call hand-off

Recording and transcription

Selective or full recording, configurable retention, AI transcription in Spanish and English, and keyword search.

LFPDPPP compliant
Policy-based retention
AI transcription ES/EN

Security and QoS

TLS/SRTP encryption, SBC with SIP fraud protection, QoS over SD-WAN and continuous MOS, jitter and loss monitoring.

TLS / SRTP encryption
SIP anti-fraud
QoS and SLA with credits

SOFTPHONE + CRM DEMO · SIMULATED DATA

Every VoIP call is logged and shows up in your CRM

This demo illustrates click-to-call, inbound screen-pop, recording and transcription. Contacts, metrics and calls are fictional and do not represent customer activity.

1,284

VoIP calls today

4.4 / 5

Average MOS

120

Active SIP trunks

By contract

Availability objective

VoIP activity · synced with CRM

DEMO

Demo contact · Example account01:42

HD VoIP callIn progress · MOS 4.6

+52 614 432 9080 → Sales00:54

Mobile softphoneConnected

Demo agent · Tier-2 Support—

Queue · Hunt groupWaiting 0:07

Voicemail → CRM00:48

Transcribed voicemailSynced

ILLUSTRATIVE MODEL · TELEPHONY COST

Compare a PSTN scenario with a VoIP scenario

Use this as a non-binding reference and replace its assumptions with your invoice and a current quote.

Your current telephony

Phone extensions80

10400800

PSTN cost per extension / month$600 MXN

$300$900$1,500

Includes analog line rental, long-distance usage and prorated PBX maintenance. The model uses MXN $240 per extension/month as an assumption; it is not a rate or quote.

PSTN vs VoIP comparison

Current PSTN phone bill$48,000 MXN

BITS enterprise VoIP$19,200 MXN

Savings / month$28,800 MXN

% reduction60%

Plus HD quality, mobility, call recording and 24/7 support in Spanish and English included.

Get a tailored VoIP quote

COMPARISON · 3CX · WILDIX · TEAMS PHONE

Which VoIP platform fits your company?

There is no universal "best" — it depends on extension count, your CRM, your current stack and your budget. BITS advises on technical merit, with no vendor quota.

BEST PRICECloud or on-prem · MX

3CX

Full VoIP licensed by simultaneous calls — predictable cost, ideal for SMB and mid-market.

Flat cost per channel
Mobile apps included
WebRTC and video calling
Fast deployment

MOST POPULARFor M365 environments

Microsoft Teams Phone

Native VoIP inside Teams — ideal if the company already lives in Microsoft 365 and wants a single client for everything.

Native Entra ID SSO
Copilot built in
Operator Connect MX
Certified MTR rooms

MOST FLEXIBLEHybrid · Open source

Wildix / FreePBX

Wildix for companies that value modern UX; FreePBX/Asterisk when the operation needs deep customization.

Hybrid cloud + on-prem
APIs and customization
SBC + advanced IVR
No license lock-in

SOFTPHONE + HD VOICE · EVERY DEVICE

Same extension, same number — laptop, mobile and IP phone

Enterprise VoIP lets authorized users answer the office number on supported devices; effective quality is validated on the operating network.

HD VOICE QUALITY

G.722 / Opus codecs with measurable quality objectives

HD G.722 and Opus codecs (16 kHz) vs 3.4 kHz on PSTN
QoS over SD-WAN or a dedicated link with measured objectives
Continuous monitoring of MOS, jitter, latency and loss
Automatic failover between two redundant SIP carriers
SIP anti-fraud with anomalous pattern detection

MULTI-DEVICE SOFTPHONE

Your extension follows you everywhere

Same number and extension on laptop, mobile and IP phone
Hand off a live call between devices without hanging up
QoS over SD-WAN or a dedicated link with measured HD voice
iOS and Android apps with push notifications and visual voicemail
WebRTC softphone for occasional users with no license

Live demo of the VoIP softphone

We show you an HD VoIP call → CRM screen-pop → recording with transcript → mobile softphone in a guided session.

Book a demo

BITS METHODOLOGY

Five steps to migrate your telephony to VoIP with controlled risk

From auditing your current telephony to training users — a phased process with telecom engineering, IFT portability and change management.

Audit of current telephony

Inventory of PBX, PSTN lines, numbers, extensions, IVR, usage and costs by area.

VoIP architecture design

Platform selection (3CX, Wildix, Teams Phone, FreePBX), SIP trunks, SBC and numbering plan.

IFT number porting

Official IFT portability, redundant SIP trunk configuration and quality testing.

Rollout and go-live

Provisioning of extensions, IP phones, softphone, IVR, hunt groups and CRM integration in parallel with your old PBX.

User training

Role-based onboarding, bilingual materials, 24/7 help desk and monthly usage reports.

Measurable objectives for cost, quality and mobility

BITS VoIP makes it possible to compare cost, mobility and service against a validated baseline before committing to results.

Comparable total cost

Trunks, licenses, traffic and support itemized against the current PSTN invoice.

Measured HD quality

G.722/Opus codecs with QoS and continuous monitoring of jitter, latency and loss.

Measurable availability

Enterprise SLA with credits, dual SIP carriers and 24/7 bilingual support.

COMPLEMENTARY SERVICES

Your VoIP gets stronger with the rest of the BITS stack

Dedicated connectivity, SD-WAN with voice QoS, cybersecurity and an AI contact center — all from one partner.

Dedicated connectivity

Symmetric links for HD voice and video with no loss.

SD-WAN / SASE

QoS for voice and video with VoIP traffic priority per site.

CCaaS · AI Contact Center

Omnichannel contact center with voicebots, integrated with your VoIP.

UCaaS · Unified communications

Take your VoIP to Teams/Webex/Zoom and add chat, video and collaboration.

Zero Trust / ZTNA

Identity-based secure access to the softphone and the admin portal.

24/7 NOC monitoring

Voice quality MOS, jitter and availability by site and carrier.

Certified partners

3CX Titanium · Wildix · Microsoft · Cisco · FortiVoice.

Bilingual help desk

Tickets, calls and chat with SLA — no escalation to offshore support.

Go-live with controlled risk

Parallel migration with the old PBX, an agreed cutover window, testing and rollback.

Our own 24/7 NOC

MOS, jitter and latency monitoring with SRE on-call from Chihuahua.

VOIP BY INDUSTRY

Enterprise VoIP telephony for your sector

Multi-site corporates

One numbering plan across offices, branches and home office with no internal long distance.

Distributed manufacturing

Plants and offices connected with HD voice, IP intercom and plant-floor zones.

Healthcare and insurance

LFPDPPP-compliant recording, multilingual IVR and screen-pop to the patient record.

Professional services

Click-to-call from the CRM, meeting transcription and per-project billing.

REFERENCE ARCHITECTURES

Enterprise VoIP migration scenarios

Review architecture patterns for retiring an analog PBX, porting numbers and comparing TCO against the current invoice. Results are validated for each operation.