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Telecom Business Review | Thursday, August 26, 2021
Enterprises that need low-cost, high-impact digital communications solutions can benefit significantly from SIP trunking.
FREMONT, CA: SIP trunking enables online calls by creating packets that can transmit information from a PSTN to the internet or vice versa. SIP is most commonly used to transmit voice, but SIP trunks can also transmit data packets in other formats, such as video and messaging. Traditional SIP trunking may have scalability limitations, but newer elastic SIP technology enables businesses to scale their usage on demand.
SIP trunking can be utilized on-demand without pre-provisioning, providing voice connectivity with the current PBX and contact center.
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In addition, elastic SIP trunking allows businesses to increase or decrease phone line usage based on demand. Similarly, elastic SIP trunking means that companies only pay for their use.
SIP trunking's primary advantages are exceptional call quality and performance, PBX compatibility, and scalability.
What is the cost of a SIP trunk?
While SIP trunking pricing can vary, elastic SIP can help ensure that businesses only pay for their needs.
Some SIP Trunking providers, such as Vonage, charge only for PSTN and carrier connections, not the SIP action itself (which varies by call type and country). Programmable SIP, which extends the SIP trunk to Voice API applications, incurs an additional cost. Still, it enables businesses to expand the functionality of voice channels and create programmable customer engagement-enhancing experiences.
SIP Trunking vs. VoIP
SIP trunking can serve as VoIP's foundational technology (voice over internet protocol). VoIP refers to any technology that enables voice communications over the internet. SIP trunking is one method by which companies can power VoIP. Moreover, while SIP trunks can transmit multimedia data packets, VoIP is only used to send voice calls.
Consider the following factors when deciding on a SIP trunking provider for organizations:
Failover/Redundancy: SIP trunk providers offer redundant phone lines to ensure calls won't be disconnected if one line goes down. Consider the available options in the event of a failover.
Scalability: An elastic SIP trunking solution adjusts the number of trunks employed in response to demand. This eliminates the need for manual scaling and can result in cost savings, as companies will only pay for the phone connections required at any time.
Self-Service: SIP trunk providers often provide dashboards or self-service portals that enable companies to analyze their configuration and quickly find troubleshooting solutions.
Call Quality: Businesses should consider whether the solution provides audio quality that ensures their calls with coworkers or customers are audible.
PBX Compatibility: SIP providers should be compatible with legacy phone systems if businesses have one.
Programmable SIP Connectivity: Companies must determine whether programmable SIP connectivity is available if they want to upgrade their SIP trunking solution. Programmable SIP technology bridges SIP trunking-enabled phone systems and an abundance of voice-enabled applications powered by Voice API.
Geographical Reach: SIP trunking providers may allow businesses to set up communications across geographic regions. For instance, Vonage's SIP trunking provides international phone numbers in 72 countries at competitive rates.
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