Skype Connect for TDM and IP-PBXs

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Everett Atkinson
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1 Skype Connect for TDM and IP-PBXs Skype connect for TDM PBXs Skype has revolutionized internet communications by extending Skype into the global business community with Skype Connect. With Skype Connect businesses can: Make calls by taking advantage of Skype s low cost global calling rates to landline and mobile phones Establish Skype Online Numbers in over 25 different countries, allowing local access via landlines and mobiles Create Skype buttons so that Skype users can call businesses free of charge Set up outbound Caller ID so that customers know who is calling Businesses with TDM PBXs or other existing TDM communications equipment can enjoy the cost savings and additional flexibility of Skype Connect without incurring expensive upgrades by utilizing an AudioCodes media gateway to integrate the two systems together. Skype Connect with Existing TDM PBXs

allowing local access via landlines and mobiles Create Skype buttons so that Skype users can call businesses free of charge Set up outbound Caller ID so that customers know who is calling Businesses

As demonstrated above, the TDM side of the media gateway interfaces directly into the TDM PBX using T1/E1 digital circuits or FXS/FXO analog circuits.

2 As demonstrated above, the TDM side of the media gateway interfaces directly into the TDM PBX using T1/E1 digital circuits or FXS/FXO analog circuits. The media gateway performs the conversion from SIP to legacy TDM protocols, passing inbound and outbound calls seamlessly to/from the business and Skype network. In this configuration, the TDM PBX is configured with an additional trunk group and associated circuits, using call routing rules to determine whether outbound calls are routed via the PSTN or via Skype. Inbound calls from Skype can be routed in the same manner as inbound calls from the PSTN. The SIP side of the gateway integrates with Skype Connect via the IP interface. Skype Connect with Existing TDM PBXs in a Drop-and-Insert Configuration In other cases, a drop-and-insert configuration may be better suited by positioning the media gateway between the PBX and PSTN. This configuration is especially useful in cases where the PBX has no free T1/E1 ports, cannot be expanded or would be prohibitively expensive to expand. Drop-and-insert configurations use two T1/E1 ports on the gateway one facing the network, while the other faces the TDM PBX. In this configuration, the media gateway transparently passes all calls that arrive from the PSTN-facing TDM ports directly through to the PBX and vice-versa. Incoming calls from the Skype network are routed to the PBX-facing T1/E1. Routing rules in the media gateway would redirect select outbound calls to the Skype network using dialed digit patterns or trunk access codes. As mentioned previously, the SIP side of the gateway integrates with Skype Connect via the IP interface. 2

In this configuration, the TDM PBX is configured with an additional trunk group and associated circuits, using call routing rules to determine whether outbound calls are routed via the PSTN or via

Skype Connect for IP-PBXs Skype has revolutionized internet communications by extending Skype into the global business community with Skype Connect.

3 Skype Connect for IP-PBXs Skype has revolutionized internet communications by extending Skype into the global business community with Skype Connect. With Skype Connect businesses can: Make calls by taking advantage of Skype s low cost global calling rates to landline and mobile phones Establish Skype Online Numbers in over 25 different countries, which allows local access via landlines and mobiles Create Skype buttons so that Skype users can call businesses for free Set up outbound Caller ID so that customers know who is calling Businesses with IP-PBXs or other existing IP communications systems can enjoy the cost savings and additional flexibility of Skype Connect without incurring the security risks associated with the Internet by utilizing an AudioCodes Enterprise Session Border Controller (E-SBC). Skype Connect with IP-PBXs and Existing Media Gateway As shown above, and E-SBC is used to provide the interface between Skype Connect and the IP-PBX. The E-SBC terminates the Skype Connect sessions from the WAN, applying security rules with access control lists (ACL) and packet filtering, using the Back-to-Back User Agent features to resolve SIP incompatibilities and finally passing calls to/from the business and Skype network. 3

which allows local access via landlines and mobiles Create Skype buttons so that Skype users can call businesses for free Set up outbound Caller ID so that customers know who is calling Businesses

4 Skype Connect with an IP-PBX using an E-SBC with TDM Gateway Modules In this configuration, the media gateway interface to the PSTN and the Skype Connect interface are combined into one hybrid environment. This configuration reduces equipment costs and provides greater flexibility allowing the same device to terminate both the TDM interfaces from the PSTN and the SIP interface from Skype Connect. Benefits Reduced costs for inbound access Inexpensive international outbound calling Avoids expensive upgrades to equipment Maintains current working environment Integrates with existing contact centers, IVR, messaging and other equipment Allows Skype callers to utilize the same communications tools as PSTN callers AudioCodes Interoperability Overview The following AudioCodes media gateways are certified with Skype Connect and a wide range of TDM PBXs: Mediant TM 800 Media Gateway and MSBG Mediant TM 1000 Media Gateway and MSBG For more information on Skype Connect, visit: 4

This configuration reduces equipment costs and provides greater flexibility allowing the same device to terminate both the TDM interfaces from the PSTN and the SIP interface from Skype Connect.

5 Mediant 800 MSBG Mediant 800 MSBG is an all-in-one, Multi-Service Business Gateway solution, designed to provide converged Voice & Data services for small-to-mid size business (SMB) customers, and to form a well-managed point of demarcation for service providers. The Mediant 800 MSBG is based on AudioCodes VoIPerfectHD best-of-breed Media Gateway technology, integrating a variety of communication functions into a single platform to support fundamental services, such as VoIP mediation, Data Routing, WAN access, Voice & Data security, survivability, and third party value-added services applications. These services allow smooth connectivity to cloud services. Mediant 1000 MSBG Mediant 1000 MSBG is an all-in-one multi-service access solution for Service Providers offering managed services and distributed Enterprises. This multi-service business gateway is designed to provide converged Voice & Data services for business customers at wire speed, while maintaining SLA parameters for superior voice quality. The Mediant 1000 MSBG is based on AudioCodes VoIPerfect best-of-breed Media Gateway technology, combined with Enterprise class Session Border Controller, Data & Voice security elements, Data Routing, LAN Switching and WAN Access. About AudioCodes AudioCodes Ltd. (NasdaqGS: AUDC) designs, develops and sells advanced Voice over IP (VoIP) and converged VoIP and Data networking products and applications to Service Providers and Enterprises. AudioCodes is a VoIP technology market leader focused on converged VoIP & data communications and its products are deployed globally in Broadband, Mobile, Cable, and Enterprise networks. The company provides a range of innovative, cost-effective products including Media Gateways, Multi-Service Business Gateways, Session Border Controllers (SBC), Residential Gateways, IP Phones, Media Servers and Value Added Applications. AudioCodes underlying technology, VoIPerfectHD, relies on AudioCodes leadership in DSP, voice coding and voice processing technologies. AudioCodes High Definition (HD) VoIP technologies and products provide enhanced intelligibility and a better end user communication experience in Voice communications. International Headquarters 1 Hayarden Street, Airport City Lod 70151, Israel Tel: Fax: AudioCodes Inc. 27 World s Fair Drive, Somerset, NJ Tel: Fax: Contact us: Website: AudioCodes Ltd. All rights reserved. AudioCodes, AC, AudioCoded, Ardito, CTI2, CTI², CTI Squared, HD VoIP, HD VoIP Sounds Better, InTouch, IPmedia, Mediant, MediaPack, NetCoder, Netrake, Nuera, Open Solutions Network, OSN, Stretto, TrunkPack, VMAS, VoicePacketizer, VoIPerfect, VoIPerfectHD, What s Inside Matters, Your Gateway To VoIP and 3GX are trademarks or registered trademarks of AudioCodes Limited. All other products or trademarks are property of their respective owners. Product specifications are subject to change without notice. Ref. # LTRM /10 V.1 5

The Mediant 800 MSBG is based on AudioCodes VoIPerfectHD best-of-breed Media Gateway technology, integrating a variety of communication functions into a single platform to support fundamental

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