About TTNC
Regulated by Ofcom as a Telecoms Network Operator TTNC Limited is a business class provider of end to end communication solutions. Our services include geographic and non geographic telephone numbers, call management packages and Voice over IP Services through to SIP Trunks, Call Tracking and bespoke telephone answering services
Their network has been designed to provide a fully resilient service delivery platform with no single point of failure. This, combined with our unique user friendly API gives us the ability to provide our customers with a unique cloud communication platform
Founded in 2004 our core focus and values have remained the same to this day
See below for a list with supported features when using the Gigaset IP devices behind an TTNC PBX system. 
| Feature | N870/N670 | |
|---|---|---|
| Gigaset software release used: | 2.23.0 | |
| Basic Call | Yes | |
| Calling line (CLIP) | Yes | |
| Connected line (COLP) | Yes | |
| Anonymous call | Yes | |
| Do Not Disturb | Yes | |
| Message waiting | N.A. | |
| Call list/history | Yes | |
| Voice mail deposit/retrieval | N.A. | |
| Call waiting | Yes | |
| Call Hold / Toggle | Yes | |
| Music on Hold | Yes | |
| Call forward (CFU) | Yes | |
| Call forward (CFNR) | Yes | |
| Call forward (CFB) | Yes | |
| Call Transfer attended | Yes | |
| Call Transfer unattended | Yes | |
| Call Transfer blind | Yes | |
| DTMF (RFC2833) | Yes | |
| Conference 3pty | Yes | |
| BLF Busy / Idle indication | N.A. | |
| Call completed elsewhere | N.A. | |
| Auto-provisioning | Yes | |