--- title: "Phone Numbers, Voice & SMS Services for Businesses | DIDWW" description: "DIDWW innovative Voice service with Toll-Free numbers & Virtual numbers in 90+ countries, SIP Trunking, P2P & A2P SMS service for businesses." canonical: "https://www.didww.com/" last_updated: "2026-10-01T12:49:25.214Z" --- # Phone Numbers, Voice & SMS Services for Businesses | DIDWW > DIDWW innovative Voice service with Toll-Free numbers & Virtual numbers in 90+ countries, SIP Trunking, P2P & A2P SMS service for businesses. with DID Numbers Global phone numbers, voice and SMS services for businesses. [Sign up now](https://my.didww.com/#/users/sign_up) [Talk to an expert](https://www.didww.com/request-a-demo) ## Over 1000 industry leaders rely on DIDWW ## Quality services for enterprise communications Scalable and fully compliant global backbone for your business telephony. Free number porting, customized onboarding and pricing. Benefit from secure and reliable global connectivity. [Get enterprise plan](https://www.didww.com/request-a-quote#get_your_customized_didww_offer) ## Relationships are our foundation Free support from highly professional, competent and friendly staff, whenever you need - 24/7/365. [Connect with our experts](https://www.didww.com/contacts) ## Our Services Get VoIP Building blocks for telecom or business professionals ### Phone Numbers #### Mobile Phone Numbers A wide selection of Voice and SMS-enabled phone numbers for cost-effective communications. #### Toll Free Phone Numbers An extensive worldwide coverage of Toll Free Numbers for global businesses with local customers. #### Local Phone Numbers Instantly available Local Phone Numbers worldwide combined with premium quality, reliability and full regulatory compliance. #### Shared Cost Numbers Effortless business phone number setup with country-wide accessibility. #### National Phone Numbers Complete freedom with National Phone Numbers for businesses in multi-regional markets across the globe. #### Universal International Freephone Numbers A single Toll Free Number for a truly global brand presence and reachability. #### Mobile Phone Numbers A wide selection of Voice and SMS-enabled phone numbers for cost-effective communications. #### Toll Free Phone Numbers An extensive worldwide coverage of Toll Free Numbers for global businesses with local customers. #### Local Phone Numbers Instantly available Local Phone Numbers worldwide combined with premium quality, reliability and full regulatory compliance. #### Shared Cost Numbers Effortless business phone number setup with country-wide accessibility. #### National Phone Numbers Complete freedom with National Phone Numbers for businesses in multi-regional markets across the globe. #### Universal International Freephone Numbers A single Toll Free Number for a truly global brand presence and reachability. #### Mobile Phone Numbers A wide selection of Voice and SMS-enabled phone numbers for cost-effective communications. ### Voice and SMS trunks #### Outbound SIP trunk A highly scalable and flexible SIP trunking solution for cost-efficient calling with the highest level of audio quality using DIDWW local and global VoIP termination routes. #### Inbound SMS trunk A reliable Inbound (E-mail, HTTP, SMPP ESME, SMPP SMSC) SMS trunk service for receiving messages sent to local, national and mobile SMS-enabled DIDs. #### Inbound SIP trunk A powerful inbound (SIP and PSTN) trunking solution for the reliable delivery of inbound VoIP traffic with load balancing for maximum scalability and high service availability. #### Outbound SMS trunk A powerful outbound SMS (HTTP, SMPP ESME, SMPP SMSC) trunk service for sending messages from DIDs to mobile phones around the globe. #### Outbound SIP trunk A highly scalable and flexible SIP trunking solution for cost-efficient calling with the highest level of audio quality using DIDWW local and global VoIP termination routes. #### Inbound SMS trunk A reliable Inbound (E-mail, HTTP, SMPP ESME, SMPP SMSC) SMS trunk service for receiving messages sent to local, national and mobile SMS-enabled DIDs. #### Inbound SIP trunk A powerful inbound (SIP and PSTN) trunking solution for the reliable delivery of inbound VoIP traffic with load balancing for maximum scalability and high service availability. #### Outbound SMS trunk A powerful outbound SMS (HTTP, SMPP ESME, SMPP SMSC) trunk service for sending messages from DIDs to mobile phones around the globe. #### Outbound SIP trunk A highly scalable and flexible SIP trunking solution for cost-efficient calling with the highest level of audio quality using DIDWW local and global VoIP termination routes. ### Capacity #### Flat-rate Capacity Dedicated and shared concurrent voice channels for predictable call volumes. #### Metered Capacity Cost-effective solution for unpredictable call volumes with a fixed per minute rate globally. #### Hybrid Capacity Flat-rate and metered capacity combined to achieve maximum availability and cost-efficiency. #### Flat-rate Capacity Dedicated and shared concurrent voice channels for predictable call volumes. #### Metered Capacity Cost-effective solution for unpredictable call volumes with a fixed per minute rate globally. #### Hybrid Capacity Flat-rate and metered capacity combined to achieve maximum availability and cost-efficiency. #### Flat-rate Capacity Dedicated and shared concurrent voice channels for predictable call volumes. ### Emergency, Porting, Forwarding, Fax #### Phone Number portability globally Wide Porting coverage for the seamless migration of your numbers to DIDWW free of charge. #### Emergency Calling DID numbers routed to the relevant Public Safety Answering Point (PSAP) for full service compliance. #### Cloud Fax Services Fax messages to selected numbers or to email, delivered via T.38 or G.711u protocols. #### Call Forwarding A wide range of voice call forwarding options including SIP and PSTN. #### SMS Delivery Extensive SMS delivery options including SMS to email, SMS to HTTP and SMPP. #### Phone Number portability globally Wide Porting coverage for the seamless migration of your numbers to DIDWW free of charge. #### Emergency Calling DID numbers routed to the relevant Public Safety Answering Point (PSAP) for full service compliance. #### Cloud Fax Services Fax messages to selected numbers or to email, delivered via T.38 or G.711u protocols. #### Call Forwarding A wide range of voice call forwarding options including SIP and PSTN. #### SMS Delivery Extensive SMS delivery options including SMS to email, SMS to HTTP and SMPP. #### Phone Number portability globally Wide Porting coverage for the seamless migration of your numbers to DIDWW free of charge. - ## Discover how to grow your business with DIDWW use cases ### Voice use cases [Phone number as a value added service Explore use case](https://www.didww.com/solutions/use-cases/voice/phone-numbers-as-a-value-added-service) - [Call tracking Explore use case](https://www.didww.com/solutions/use-cases/voice/call-tracking) - [Number masking services Explore use case](https://www.didww.com/solutions/use-cases/voice/number-masking-services) - [Call centers Explore use case](https://www.didww.com/solutions/use-cases/voice/call-centers) - [Contact centers Explore use case](https://www.didww.com/solutions/use-cases/voice/contact-centers) - [Voice for IoT Explore use case](https://www.didww.com/solutions/use-cases/voice/voice-for-iot) - [DIDs for conference calling Explore use case](https://www.didww.com/solutions/use-cases/voice/DIDs-for-conference-calling) - [More use cases](https://www.didww.com/solutions/use-cases) ### Voice use cases [Phone number as a value added service Explore use case](https://www.didww.com/solutions/use-cases/voice/phone-numbers-as-a-value-added-service) [Call tracking Explore use case](https://www.didww.com/solutions/use-cases/voice/call-tracking) [Number masking services Explore use case](https://www.didww.com/solutions/use-cases/voice/number-masking-services) [Call centers Explore use case](https://www.didww.com/solutions/use-cases/voice/call-centers) [Contact centers Explore use case](https://www.didww.com/solutions/use-cases/voice/contact-centers) [Voice for IoT Explore use case](https://www.didww.com/solutions/use-cases/voice/voice-for-iot) [DIDs for conference calling Explore use case](https://www.didww.com/solutions/use-cases/voice/DIDs-for-conference-calling) [More use cases](https://www.didww.com/solutions/use-cases) ### SMS use cases - [SMS customer support Explore use case](https://www.didww.com/solutions/use-cases/sms/SMS-customer-support) - [SMS marketing Explore use case](https://www.didww.com/solutions/use-cases/sms/SMS-marketing) - [SMS notifications Explore use case](https://www.didww.com/solutions/use-cases/sms/SMS-notifications) - [SMS verifications Explore use case](https://www.didww.com/solutions/use-cases/sms/SMS-verifications) - [SMS surveys Explore use case](https://www.didww.com/solutions/use-cases/sms/SMS-surveys) - [More use cases](https://www.didww.com/solutions/use-cases) ### SMS use cases [SMS customer support Explore use case](https://www.didww.com/solutions/use-cases/sms/SMS-customer-support) [SMS marketing Explore use case](https://www.didww.com/solutions/use-cases/sms/SMS-marketing) [SMS notifications Explore use case](https://www.didww.com/solutions/use-cases/sms/SMS-notifications) [SMS verifications Explore use case](https://www.didww.com/solutions/use-cases/sms/SMS-verifications) [SMS surveys Explore use case](https://www.didww.com/solutions/use-cases/sms/SMS-surveys) [More use cases](https://www.didww.com/solutions/use-cases) ### Business telephony - [Call center & queues Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/call-center-and-queue) - [Conference calling Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/conference-calling) - [Cloud IVR Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/cloud-ivr) - [Business phone systems Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/business-phone-systems) - [Global presence Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/global-presence) - [PSTN replacement Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/pstn-replacement) - [More use cases](https://www.didww.com/solutions/use-cases) ### Business telephony [Call center & queues Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/call-center-and-queue) [Conference calling Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/conference-calling) [Cloud IVR Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/cloud-ivr) [Business phone systems Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/business-phone-systems) [Global presence Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/global-presence) [PSTN replacement Explore use case](https://www.didww.com/solutions/use-cases/business-telephony/pstn-replacement) [More use cases](https://www.didww.com/solutions/use-cases)