ISDN vs SIP
Due to the BT ISDN phase out, we have laid out the pros and cons of ISDN against its more modern counterpart; SIP (or SIP Trunks)
We aim to take key topics and expand on them using our blog section.
The topics vary but we have tried to encompass a wide range of topics such as; Broadband, Security, Phone systems, Mobile, WAN, Unified Communications, ISDN and SIP.
We regularly update this section, so please do keep returning to check out our new content.