Practice Labs
VoIP Readiness Without Sales Jargon
Codec comparisons, jitter buffers, and QoS markings explained for classroom VoIP rebuilds.
Cover for VoIP Readiness Without Sales Jargon
Overview
You will annotate PCAP silence gaps, map DSCP values to classroom priorities, and draft a readiness email that procurement teams can forward without edits. The article assumes modest gear and keeps pricing talk informational only.
What is included
- Codec cheat sheet with bandwidth math
- QoS marking table for classroom vs admin VLANs
- Email template for maintenance windows
- Jitter buffer experiment worksheet
- Troubleshooting ladder for one-way audio
- Photo guide for handset cabling hygiene
- Optional live lab checklist
Outcomes
- Pick a codec given constraints without overselling quality
- Describe jitter impact using plain language
- Ship a readiness email that cites measurements
FAQ
Do I need a PBX?
No. Packet captures can come from softphones in a lab VLAN.
Is SIP trunking covered?
Awareness only, enough to answer exam questions and explain risks.
Limitations?
No carrier contracts or number porting checklists are provided.
Reader notes
“QoS table alone justified the purchase. I still read the jitter worksheet before each night shift.”