Polycom Vega Gateway appendix FXS connection to a PBX Considerations, FXO connection to a PBX

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9.c FXS connection to a PBX

Considerations

•Out-dialled calls from the PBX can pass a dialled number to the Vega; it can use this to decide which destination VoIP gateway to route the call to (i.e. multiple destination gateways may be supported), and also which destination end-point to route the call to.

•Calls from the Vega to the PBX, are like calls from the PSTN – no dialled number is passed, so typically the call will be routed to a receptionist or an auto attendant (or the FXS gateway may just be used for outbound calls)

•May not be able to receive transferred calls – some PBXs will prevent calls being transferred to a trunk interface.

9.d) FXO connection to a PBX

When making calls from VoIP to PBX the dialled number is passed using DTMF tones played into the PBX.

Considerations

•An FXO device on an extension interface of a PBX can accept transferred calls, but as no dialled number is presented to the gateway by the PBX, the gateway must be configured with a static destination to route the call to.

Version 2.1

16 March 2006

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Vega Gateway Scenarios.

©2005-2006 VegaStream Ltd.

 

Examples are given in best faith – ensure that you check the capabilities of systems before

 

 

deploying them, especially the functionality of devices not designed and delivered by VegaStream.

 

VoIPon Solutions www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0) 1245 600560

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Contents Analog Applications Pre-sales Engineer’s guideVoIP between sites IP Network Telephony NetworkUser experience USPs3rd party product choices Future extensionsVoIP between sites and home-worker / remote office Telephony Network USPs Version March Vega Gateway Scenarios Telephony Network USPs SNOM, Mitel MKC, IVR technologies, NetSapiens Analog long line extensions IP Network IP Telephony IP Network Aim To use internet to provide cheap inter-country calling Pstn toll bypassIVR technologies Tangerine Inc TDM to / from VoIP converter Future extensions 3rd party product choices Aim To save leased line call costs between sites Leased line eliminator for Qsig connections between sitesUser experience Analog connections Vega FXS for analog telephones Considerations FXO connection to a PBX FXS connection to a PBX ConsiderationsCalls FXS to FXO PBX to PBX connectivity using both FXS and FXOCalls FXO to FXS PBX to PBX connectivity using FXO only PBX to PBX connectivity using FXS onlyAnalog long line extensions Mass analog connection using a Vega 400 and a channel bankAppendix 1 3rd Party Products Alceo ArelNet Softswitch Asterisk SIP proxyAlcatel Thomson SpeedTouch 610 router Axiom provisioning system BroadsoftGNU H.323 GateKeeper Ingate SIParator GenesysInteractive Intelligence PBXnSIPSonicWall Siemens’ OpenScape SIPExchange PingTelSnom 4S, proxy, media server, Nat traversal filter Tangerine Inc SIP / H.323 application server TelewareITSPs and VoIP services Existing firewalls Appendix 2 Things to consider Audio quality
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