Static, crackling or noise on the phone line
Whether it's a single handset or all handsets that are affected by crackling or static, then this generally points to whether it's internal or external equipment causing the problem.
SIP Trunks
SIP Trunks articles, case studies and use cases from in2tel, the Small Business Irish Network.
in2tel Announces Partnership with NEC Enterprise Solutions as Authorised SIP Partner
The partnership will allow NEC customers and partners to use in2tel’s SIP services when using NEC systems.
How fast does my broadband need to be for VoIP?
Whether it’s WhatsApp in your home, or a hosted PBX in the office, a look into how much bandwidth you need.
What Are SIP Trunks? A Quick Guide
SIP Trunking is the transfer of data and the ability for lots of calls to travel through a single network connection.