General Product Description Sopho 2000IPS Release 12.2, August 2006NEC Philips Unified Solutions UPD 44 of 259© NEC Philips Unified Solutions, 2006. All right reserved.Reproduction in whole or in part is prohibited without the written consent of the copyright owner.2.9 Fax and modem traffic2.9.1 T.30 Fax over IP (obsolete)T.30 ITU-T standard FAX handshake protocol is supported to help facilitate FAX over amuch broader range of customer premise equipment. The facsimile transmissionprocedure (T.30) is supported via T.30 FAX relay on the VCT package; PN-32IPLA-Ccard and PN-16VCTA-A card must be used; Note since these cards are not RoHScompliant and will be phased out, this feature will no longer be supported!Facsimiles can be sent between SOPHO 2000 IPS and SOPHO IPS DM systems.If a Super G3 facsimile is used, the transmission speed will be equivalent to G3.Minimum network requirements such as available bandwidth, QoS, jitter buffer valuelarger than network assumed value, and clock synchronization play an important factorfor successful G.711 FAX transmissions.In some applications bandwidth is extremely limited making network problems virtuallyimpossible to avoid. For these applications T.30 FAX is recommended.Required bandwidth for FAX Connection:Connection Conditions Required Bandwidth (One-way)G711, Payload=40ms 150 Kbps (estimated)T.30, G729a, Payload=40ms,Communication speed=14.4Kbps(No IP Header compression in Router)23.6 Kbps (FAX Payload=78byte)T.30, G729a, Payload=40ms,Communication speed=14.4Kbps(with IP Header compression in Router)16.6 Kbps (FAX Payload=78byte)2.9.2 FAX Communication with IP PAD cards (Release 9):Fax over IP (FoIP) is now available in G.711 non-compressed or G.726 compressionmode.PN-8IPLA IP-PAD-C supports G.711 and G.726 Pass-Through FAX communicationWhen providing the G.711 pass-through FAX communication with the PN-32IPLA-Acard, following condition is required.- PN-32IPLA IP PAD-E is mounted.OR- PN-32IPLA IP PAD-D and PN-16VCTAA IP PAD-B are mounted.(When mounting two 16VCT cards, both should be PN-16VCTAA IP PAD-B.)When providing the G.726 pass-through FAX communication with the PN-32IPLA-Acard, following condition is required.PN-32IPLA IP PAD-E and the PN-16VCTAA IP PAD-B are mounted.(When mounting two 16VCT cards, both should be PN-16VCTAA IP PAD-B.)8IPLA does not support T.30 FAX. (T.30 FAX requires the 32IPLA-A)
