Stop Bleeding Cash on Zombie Lines, Roaming Spikes & Carrier Overcharges.
Corporate Mobile Contract Management, 100% Reconciled.
IT directors, procurement heads, and fleet operations leaders waste 15+ hours every month navigating byzantine carrier portals, reconciling 200-page enterprise invoices, contesting mysterious line-item cramming fees, and paying for disconnected "zombie" employee SIMs. SageDoer provides dedicated Mobile Phone Contract Managing Virtual Assistants skilled in Verizon Enterprise Center, AT&T Business Premier, T-Mobile Account Hub, Tangoe, Calero, Sakon, and Microsoft Intune. We audit every line item, suspend inactive lines, enforce roaming travel passes, coordinate upgrades, and secure carrier billing credits. Supervised daily by a veteran Telecom Operations Project Manager at $0 extra management fee, starting from just $6/hr.
Line (512) 555-8921 • Inactive
0 MB / 60 DaysDeparted sales manager SIM • $85/mo data plan billed unnoticed for 4 months
SageDoer Telecom Assistant
Carrier Rep LiaisonSuspended line in Verizon portal • Disputed 90 days retroactive fee • Reallocated pool
$255.00 Credit Applied to Master Invoice
Mastery Across Tier-1 Global Carriers, Telecom Expense Management (TEM) & MDM Portals
Pre-Trained Across Premier Enterprise Carrier & Device Portals
Zero training lag. Our mobile phone contract virtual assistants integrate smoothly into your existing carrier enterprise accounts, billing portals, and IT service desk ticketing queues.
Verizon Enterprise
Bulk SIM activation, plan changes, user reassignment, ECPD profile management, and EDI billing feed audits
AT&T Premier
FAN number routing, custom corporate discount tracking, pooled rate plans, and order management queues
T-Mobile for Biz
Lines suspension, eSIM allocation, Magenta / Go5G Business pooling, and international roaming pass staging
Tangoe TEM
Telecom Expense Management (TEM), automated electronic billing ingestion, dispute logging, and audit analytics
Calero-MDSL
Multi-carrier inventory reconciliation, contract milestone compliance, and automated cost center chargebacks
Brightfin
Native ServiceNow mobile asset management, wireless expense optimization, and employee self-service approval flows
Intune & Jamf
Mobile Device Management (MDM) fleet inventory audit, remote wipe for departed staff, and SIM IMEI matching
Apple Business Mgr
Carrier-assigned DEP device enrollment, serial number verification, warranty status checks, and AppleCare tracking
IT Service Desks
Managing internal helpdesk tickets for phone replacements, lost SIM cards, roaming unlocks, and accessory requisitions
Coupa & SAP
Carrier PO matching, invoice routing, multi-entity cost center coding, and vendor contract renewal alerts
Master Fleet Sheets
Live employee-to-SIM mapping, upgrade eligibility calendar, device model records, and upgrade cycle schedules
Telecom Analytics
Monthly executive telecom burnup/burndown decks, carrier cost-per-user benchmarks, and savings trend curves
What Your Mobile Phone Contract Virtual Assistant Handles Daily
Free your internal IT engineers and procurement specialists from tedious carrier administrative drag. Hand over billing audits, line provisioning, and plan optimizations.
Zombie Line & Inactive Scrubbing
Companies routinely pay for dozens of cellular lines belonging to departed personnel. We rigorously identify and terminate inactive lines.
- Cross-referencing active HR headcount with carrier phone registers every pay cycle
- Flagging lines showing 0 voice minutes and <50 MB data consumption over 30, 60, or 90 days
- Submitting formal suspension or cancellation orders in carrier enterprise portals
- Recovering monthly line access fees ($45 to $95 per line) to eliminate recurring dead spend
Invoice Auditing & Dispute Credits
Carrier invoices are notoriously laden with billing errors, cramming fees, unauthorized app subscriptions, and missing discounts.
- Scrutinizing monthly PDF/EDI carrier billing feeds across all departmental sub-accounts
- Catching unauthorized third-party charges, double-billed insurance, and vanished FAN discounts
- Filing official billing dispute tickets and chasing carrier account executives for credit memos
- Tracking credit verification on subsequent billing statements before clearing invoices for AP
Rate Plan & Pool Optimization
Never overpay for unused unlimited tiers or suffer exorbitant data overage penalties on shared corporate pools.
- Analyzing trailing 90-day GB consumption profiles for every individual corporate subscriber
- Moving low-data field users to cost-effective shared pool tiers or basic voice/text plans
- Monitoring high-consumption users to avoid carrier throttling during critical operational windows
- Rebalancing pooled data thresholds monthly to eliminate $15/GB overage charges
Provisioning, Porting & Offboarding
Seamlessly manage device handoffs, eSIM activations, number portability, and clean security wipes for departing staff.
- Provisioning new physical SIMs or QR-code eSIM profiles for incoming new hires in <2 hours
- Managing complex corporate porting (PAC codes, FAN billing authorizations, number transfers)
- Executing immediate offboarding: locking lines, initiating MDM wipes, and retrieving company numbers
- Re-assigning existing dormant phone numbers to new hires to prevent carrier activation fees
Roaming Passes & Travel Governance
Prevent four-figure roaming bill surprises by proactively monitoring and scheduling business travel passes.
- Monitoring executive and sales travel calendars for upcoming international destinations
- Staging carrier travel packages (Verizon TravelPass, AT&T International Day Pass) prior to departure
- Enforcing roaming data caps and maritime/in-flight cellular locks to avoid accidental $2.05/MB rates
- Deactivating international features immediately upon return to avoid lingering recurring costs
Hardware Upgrades & Trade-In Value
Maximize carrier promotional upgrade credits and maintain strict accountability over physical fleet handsets.
- Tracking 24-to-36 month carrier equipment installment plans (EIP) and upgrade eligibility dates
- Executing bulk trade-in returns with carriers to harvest up to $800+ credit per retired flagship device
- Coordinating warranty replacements, AppleCare claims, and cracked screen logistics
- Maintaining live master inventory mapping IMEI, serial number, user name, and physical office location
How SageDoer Brings Complete Order to Your Mobile Fleet
Zero training lag, zero recruitment fees, and complete confidentiality under comprehensive enterprise NDAs. Here is how our managed mobile contract management workflow functions:
Fleet Audit & Carrier Onboarding
We ingest your past 3 months of carrier invoices, reconcile active lines against active employee directories, and identify immediate zero-usage zombie lines.
Master Line Matrix & Pool Tuning
We construct a unified master spreadsheet or TEM register tracking phone number, IMEI, carrier account, user email, department cost center, and upgrade status.
Daily Desk Tickets & Roaming
Your assistant handles daily IT helpdesk requests: activating eSIMs, ordering replacement chargers, suspending departed lines, and scheduling travel passes.
Monthly Audit & Dispute Recovery
Every monthly carrier invoice is audited line-by-line. Disputes are filed, credits are enforced, and an executive spend burndown report is submitted to leadership.
Why IT & Finance Leaders Choose SageDoer for Mobile Fleet Ops
Comparing unvetted freelance marketplaces and expensive domestic telecom coordinators against SageDoer’s dedicated, fully managed mobile contract management:
| Operational Feature |
Freelance Platforms / Upwork
|
SageDoer (Managed Mobility VA)
|
|---|---|---|
| Platform Markups & Hidden Surcharges | Up to 20% to 30% platform service fees, contract buyout penalties, and currency exchange surcharges | 0% Hidden Fees. Pay strictly for logged productive hours ($6 to $7/hr). |
| Carrier Enterprise Portal Fluency | General administrative virtual assistants who have never navigated Verizon ECPD, AT&T Premier, or Tangoe | Pre-vetted telecom specialists: Experienced in carrier portal navigation, EDI billing, EIP plans, and IMEI logs |
| Daily Operations Oversight | You must micromanage, explain basic wireless pooling rules, and double-check their line reconciliation | Dedicated Project Manager acts as your single point of contact and billing accuracy quality auditor ($0 extra) |
| Carrier Dispute Persistence | Hesitant to follow up with tier-1 carrier reps; lets disputed overage charges silently expire | Persistent ticket chasing: Relentlessly follow up on dispute ticket numbers until credits hit your billing statement |
| Turnaround & Onboarding Speed | Weeks spent reviewing unverified resumes, screening English fluency, and negotiating contracts | Rapid deployment. Matched with a background-checked mobility tracking specialist in <12 hours. |
| Absence & Billing Continuity | If your freelancer vanishes during month-end bill review, unapproved overages get auto-debited | Seamless internal backup coverage coordinated by your PM with zero disruption to your AP cycles |
Predictable Hourly Rates. Zero Management Markups.
Pay strictly for logged assistant hours auditing invoices, managing carrier tickets, and tracking fleet devices. Dedicated Mobility Operations Project Manager oversight is included on every plan at zero extra cost.
Part-Time Mobile Contract Specialist
Ideal for mid-sized fleets (50 to 250 active lines) needing monthly invoice audits, periodic line provisioning, and zero-usage line scrubbing.
- Pay only for hours of pure work
- Dedicated Project Manager included
- Free management supervision ($0 extra)
- Zero setup or onboarding fees
- No monthly contract lock-in
- Verizon, AT&T, and T-Mobile portal updates
Full-Time Dedicated Mobility Ops Coordinator
Enterprise-grade continuous telecom management for large fleets (250+ lines), logistics operations, global field forces, and multi-carrier setups.
- Pay only for hours of pure work
- Dedicated Project Manager included
- Free management supervision ($0 extra)
- Zero setup or onboarding fees
- No monthly contract lock-in
- Internal trained backup specialist on standby
Telecom Operations ROI & Savings Calculator
Compare SageDoer’s managed mobile contract management against hiring an in-house telecom administrator or IT procurement specialist in the US/UK ($40/hr average including employer payroll taxes, healthcare benefits, and workstation overhead).
Trusted By IT Directors, Procurement Leads & Fleet Executives
See how enterprise organizations eliminate zombie lines and recoup thousands in carrier overcharges with SageDoer. (Hover to pause)
"We operate a delivery fleet of 450 drivers across 6 states with ruggedized Samsung tablets and smartphones on AT&T. With driver turnover, our cellular bills were completely out of control. Within 30 days, our SageDoer assistant identified 68 zombie lines still billing at $65/month for departed drivers, negotiated $4,200 in billing credits for missing enterprise discounts, and rebalanced our pooled data. They saved us over $4,400 per month."
Jason Hayes
Director of Fleet Operations, Apex Logistics Express (Dallas, TX)
"Every month our accounting team dreaded the 180-page Verizon bill. Superintendents were adding lines without approvals, and we had multiple $1,000+ roaming shock bills from project managers traveling to Canadian jobsites. SageDoer deployed an assistant who established a formal device matrix, sets up travel passes before flights depart, and reviews every monthly line charge. Having a dedicated PM oversee the ledger is incredible."
Marcus Sterling
Chief Financial Officer, Cornerstone General Contractors (Chicago, IL)
"We manage wireless accounts across T-Mobile in the US and Vodafone in the UK. Onboarding new remote developers used to take our tier-2 helpdesk engineers 4 hours per hire between eSIM configuration, Apple Business Manager tagging, and Intune enrollment. Our SageDoer assistant took over the entire mobile provisioning queue. They execute every SIM activation in under 45 minutes and keep our asset database flawless."
Sarah Chen
VP of IT Operations, CloudMatrix Software (San Jose, CA)
"With 1,200 cellular clinical devices across 14 hospital clinics, phone upgrades were a chaotic nightmare. Phones were sitting in drawers after 36 months, meaning we were leaving over $90,000 in carrier trade-in value on the table. Our SageDoer assistant built an automated upgrade calendar, coordinated returns, and tracked carrier promotional credits down to the penny. At $6/hr, it is easily our highest-ROI contract."
David Reynolds
VP of Technology Infrastructure, Palmetto Health Network (Atlanta, GA)
"We operate a delivery fleet of 450 drivers across 6 states with ruggedized Samsung tablets and smartphones on AT&T. With driver turnover, our cellular bills were completely out of control. Within 30 days, our SageDoer assistant identified 68 zombie lines still billing at $65/month for departed drivers, negotiated $4,200 in billing credits for missing enterprise discounts, and rebalanced our pooled data. They saved us over $4,400 per month."
Jason Hayes
Director of Fleet Operations, Apex Logistics Express (Dallas, TX)
"Every month our accounting team dreaded the 180-page Verizon bill. Superintendents were adding lines without approvals, and we had multiple $1,000+ roaming shock bills from project managers traveling to Canadian jobsites. SageDoer deployed an assistant who established a formal device matrix, sets up travel passes before flights depart, and reviews every monthly line charge. Having a dedicated PM oversee the ledger is incredible."
Marcus Sterling
Chief Financial Officer, Cornerstone General Contractors (Chicago, IL)
Frequently Asked Questions
Everything you need to know about carrier portal delegation, NDAs, dispute recovery, and working with SageDoer.
Stop Overpaying on Corporate Mobile Bills Today.
Share your current carrier accounts, approximate line count, primary pain points (zombie lines, roaming spikes, invoice auditing), and weekly hours needed. Our dedicated Mobility Operations Project Manager will review your scope and pair your certified telecom assistant within 12 hours.
Request Your Mobile Fleet Specialist Match
Tell us about your fleet line count, primary wireless carriers (Verizon, AT&T, T-Mobile, Vodafone, etc.), and weekly hours needed. We will match your dedicated assistant within 12 hours.
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