Voice Network Details

DC Tech operates as a Active/Active Geo Redundant Infrastructure to best meet the needs of our partners and your customers.  
 Below are the addresses and related IPs for different segments of the network.  
 We recommend  that you always use auto provisioning, and if manually configuring a device, use its SRV feature, to benefit from the best available redundancy methods.  
 We also suggest that you avoid using a specific DNS A Record or direct IP if manually configuring a device.  
 SIP Servers 
 IMPORTANT: If using this list to white list IPs on your local router or firewall, please ensure you whitelist all IP's or you may experience a service interruption during a maintenance or failover event. 
 
 
 
   
 Address 
 DNS A record resolution IP 
 SRV record resolution IP 
 
 
 
 SBC Global 
 
 
 
 
 
 
 
 SIP Trunking 
 T38 IP-Fax 
 Legacy Hosted PBX 
 
 sbc.simplelogin.net 
 
 192.92.8.30 Primary 
 64.52.82.30 Secondary 
 
 
 192.92.8.30 
 64.52.82.30 
 
 
 
 PBX East 
 
 
 
 
 
 
 Hosted PBX 
 Hosted Call Center 
 
 
 pbx1.mia.simplelogin.net 
 pbx2-mia.simplelogin.net 
 
 192.92.8.71 
 All PBX IPs in varying order based on network needs 
 
 
 PBX Central 
 
 
 
 
 
 
 Hosted PBX 
 Hosted Call Center 
 
 pbx2.dfw.simplelogin.net 
 64.52.82.25 
 All PBX IPs in varying order based on network needs 
 
 
 PBX West 
 
 
 
 
 
 
 Hosted PBX 
 Hosted Call Center 
 
 pb1.sjc.simplelogin.net 
 64.52.83.20 
 All PBX IPs in varying order based on network needs 
 
 
 
 Codecs 
 DC Tech operates transparent proxies and does not perform transcoding. This ensure your media does not suffer any quality degradation from the transcoding process. Offered codecs will be negotiated by the SIP Server and a matching preferred codec will be used. 
 Supported Audio Codecs: 
 G.711U (PCMU)* 
 G.711A (PCMA) 
 G.722 
 G.729* 
 *Note : These codecs should always be enabled to guarantee call completion. 
 Supported Video Codes: 
 H.263 
 H.264 
 DTMF 
 RFC2833 should always be the preferred DTMF method. 
 IP Fax 
 DC Tech supports IP Faxing via T.38 and G.711 fallback. 
 T.38 faxing is supported on most DIDs and Termination carriers and initiated via a T.38 re-INVITE.