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Internet outages are a fact of life for businesses—whether caused by severe weather,network issues,or human error.For companies relying solely on internet-based communication systems,these outages can be catastrophic:calls drop,customers can’t reach support,and employees can’t collaborate.Redstone IP-PBX systems solve this problem with their failover to PSTN(Public Switched Telephone Network)feature,a backup mechanism that ensures communication remains uninterrupted even when the internet goes down.
First,let’s clarify what PSTN failover is.PSTN is the traditional analog phone network that has been used for decades—reliable,widely available,and independent of the internet.When an IP-PBX system like Redstone’s REX Series detects an internet outage,it automatically switches(fails over)to PSTN lines,routing calls through the traditional network instead.This means businesses can still make and receive calls,even when their Wi-Fi or Ethernet connection is down.
Redstone’s PSTN failover is seamless,with no manual intervention required.The system constantly monitors the internet connection,and if it detects a disruption(e.g.,no signal or slow speeds below a threshold),it switches to PSTN in seconds.For example,a small retail store using the REX 20 IP-PBX might be in the middle of a customer call when the internet cuts out.The REX 20 will automatically failover to PSTN,and the call will continue without the customer noticing a difference.This seamless transition is crucial for maintaining customer trust and avoiding frustration.
The benefits of PSTN failover extend to businesses of all sizes.For small businesses like cafes or local shops,it means they can still take reservation calls or process takeout orders during internet outages.For medium-sized enterprises like regional offices,it ensures employees can coordinate with headquarters and clients.For large enterprises like hospitals or banks,it’s a lifeline—emergency calls can still be made,and critical operations(like patient care or financial transactions)can continue.For example,a hospital using the REX 8000 IP-PBX can rely on PSTN failover to ensure emergency calls to the ER are never dropped,even during a widespread internet outage.
Redstone IP-PBX systems support flexible PSTN integration,letting businesses choose how many PSTN lines to use for backup.A small business might need 2-4 PSTN lines for basic calls,while a large call center could require 50+lines to handle high call volumes during outages.The systems’FXO ports(used to connect to PSTN lines)make this integration easy—businesses can simply plug PSTN lines into the IP-PBX and configure failover settings via the Redstone UMS.For example,the REX 50 has 12 FXS/FXO ports,so a medium-sized business can use 8 ports for IP calls and 4 for PSTN backup.
PSTN failover also works hand-in-hand with other Redstone IP-PBX features to ensure business continuity.Call routing rules can be pre-configured to prioritize critical calls during outages—for example,a law firm can set the system to route emergency client calls to PSTN lines first,while non-urgent calls go to voicemail.The system also logs failover events,so IT teams can review what happened and take steps to prevent future outages(e.g.,upgrading the internet service provider).
Cost-effectiveness is another advantage of Redstone’s PSTN failover.Businesses don’t need to maintain a separate PSTN phone system—they just need a few PSTN lines for backup,which are much cheaper than a full analog system.The IP-PBX uses these lines only when the internet is down,so businesses don’t waste money on unused capacity.For example,a small business with 2 PSTN lines might pay$50/month for backup,compared to$200/month for a separate analog system.
In summary,IP-PBX failover to PSTN is a critical feature for businesses that can’t afford communication downtime.Redstone’s REX Series makes this feature seamless,flexible,and cost-effective,ensuring that even during internet outages,businesses can keep communicating with customers,employees,and partners.For businesses that prioritize continuity and reliability,PSTN failover is a must-have—and Redstone IP-PBX delivers it perfectly.
Redstone Systems, Inc. founded in Delaware, USA in December 2002, has been the ODM vendor for many well-known communications companies, serving the Southeast Asian market. In 2020, Redstone Systems will begin to return to the North America market with its self-developed brand.
Redstone has a complete product line of intelligent voice gateways, providing IP-PBXs, analog VoIP gateways (FXS/FXO), digital VoIP gateways (E1/T1), border appliances, and session boundary controllers (SBCs).
With advanced technology in digital signal processor (DSP), speech coding and speech processing, as well as efficient operational tools such as cloud remote management, auto provisioning, Redstone gateways are widely used in markets of enterprise communications, cloud communications, call centers, operators’ IMS/SIP trunks, bringing users friendly, efficient and reliable communication experience.
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