Toshiba Strata Ctx100, Ctx670 General Description Manual
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Features
Voice or Tone Signaling
Strata CTX General Description 06/0383
Voice or Tone Signaling
Each [DN] button can be programmed for either Voice or Tone Signaling as the standard method
of internal incoming call signaling. Tone Signaling rings the telephone when a call comes in and
ensures better privacy. With Tone Signaling, the called telephone receives a one-second ring tone
every three seconds. The pitch and sound of internal tone signaling is always the same. Incoming
CO line ringing is...](http://img.usermanuals.tech/thumb/76/86514/w64_toshiba-strata-ctx-100-670-general-description_d-96.png "Page 97
Features
Voice or Tone Signaling
Strata CTX General Description 06/0383
Voice or Tone Signaling
Each [DN] button can be programmed for either Voice or Tone Signaling as the standard method
of internal incoming call signaling. Tone Signaling rings the telephone when a call comes in and
ensures better privacy. With Tone Signaling, the called telephone receives a one-second ring tone
every three seconds. The pitch and sound of internal tone signaling is always the same. Incoming
CO line ringing is...")
Appendix – Specifications Reserve Power Strata CTX General Description 06/0387 Reserve Power Two or four customer-supplied 12VDC reserve batteries (80 ampere-hours max.) can be connected to either system to maintain normal operation during a power failure (see Tables 22~25). The batteries are kept in a highly-charged state by the power supply’s battery charger and must be connected when the system is operating normally. Fully charged batteries must be connected when normal AC power is available, batteries cannot be connected after/during an actual power failure. The battery changer is standard on the CTX670 power supply. An optional ABCS battery changer must be used in the CTX100 power supply. Table 22 CTX100 Reserve Power Characteristics Battery Charger CharacteristicsMaximum Battery Charger Drain (-24VDC) Charger: current limiting Nominal float voltage: 2.275 volts/cell Charge current: 280mA amps maximum Battery discharge cut-off voltage: 20.5 ±0.5VDCBase Cabinet Base + Expansion Cabinets 3.15 amps 6.30 amps Table 23 CTX100 Typical Reserve Power Duration Estimates1 1. Assumes 80 ampere-hours with 12VDC batteries. Number of Cabinets12 Estimated operation time: two-battery configuration25 hr.12.5 hr. Estimated operation time: four-battery configuration50 hr.25 hr. DC Current Drain (-24VDC)3.15 amps.6.30 amps. Table 24 CTX670 Reserve Power Characteristics Battery Charger CharacteristicsMaximum Battery Charger Drain (-24VDC) Charger: current limiting Nominal float voltage: 2.275 volts/cell Charge current: 0.7 amps maximum Battery discharge cut-off voltage: 20.5 ±0.5VDC1 cabinet 2 cabinets 3 cabinets 4 cabinets 6.0 amps 12.0 amps 18.0 amps 24.0 amps 5 cabinets 6 cabinets 7 cabinets 30.0 amps 36.0 amps 42.0 amps Table 25 CTX670 Typical Reserve Power Duration Estimates1 1. Assumes 80 ampere-hours with 12VDC batteries. Number of Cabinets1234567 Estimated operation time Two-battery configuration12.0 hr.6.0 hr.4.0 hr.3.0 hr.2.5 hr.2.0 hr.1.8 hr. Estimated operation time Four-battery configuration24.0 hr.12.0 hr.8.0 hr.6.0 hr.5.0 hr.4.0 hr.3.5 hr. DC Current Drain (-24VDC)4.6 amps.8.7 amps.12.8 amps.16.9 amps.21.0 amps.25.1 amps.29.2 amps.
Appendix – Specifications Hardware Compatibility 88Strata CTX General Description 06/03 Hardware Compatibility PCB compatibility for the Strata DK280, DK424, DK424i, CTX100 and CTX670 systems is shown in Table 26. Table 26 Hardware Compatibility CategoryUnit NameDK280 & DK424DK424iCTX100CTX670 Processor Card BECU/BBCU with optional BBMS, BEXS, BSISNCNC1NCX B_CAU/B_CBU cards for DK424iNCXNCNC RCTU cards for DK424XNCNCNC ACTU1, 2 and subassembliesNCNCXNC DTMF Receiver Unit BRCS-4/8/12XXNCNC RRCS-4/8/12XNCNCNC ARCS (16). NCNC Used for ACTU1. Built-in ACTU2.16/32 Built-in Optional Interface Unit BIOUNCNCXX BSIS NCNCXX PIOU, PIOUS, RSIU, RSISXXNCNC RSSUXXNCNC Standard Telephone InterfaceBSTU, RSTU3, RDSU/RSTSXXXX ASTU (R1.3 and higher)NCNCXNC Electronic Telephone InterfacePEKU, PESUXXNCNC Digital Telephone Interface ADKUNCNCXNC BDKUXXXX BDKSNCNCXX BPCI (future)NCNCXX PDKU2 (DKT2000-series phones only)XXXX RDSU, RSTS (DKT2000-series only)XXXX IP Telephone InterfaceBIPU-M1A, BIPU-M2ANCNCXX CO Line Interface BVPUXXXX RCIU/RCISXXXX RCMU/RCMSXXXX RCOU/RCOS2XXXX RDDUXXXX RDTU2, 3XXXX REMUXXXX RGLU2, RGLU3XXXX ISDN Interface RBSU/RBSSX2XXX RBUU/RBUSX2XXX BPTU1, RPTU2, RPTUX3XXX4 Remote Expansion Cabinet InterfaceRRCUXXNCX IP QSIG InterfaceBIPU-Q1NCNCXX4
Appendix – Specifications Hardware Compatibility Strata CTX General Description 06/0389 Stations and Terminal Equipment EKT2000, EKT6000, EKT6500, HDSS, HDCBXXNCNC Existing Proprietary Attendant ConsoleXXNCNC DK424 PC AttendantXXNCNC Strata CTX PC Attendant Console, BATINCNCXX RPCI (RS-232C) - Data or TAPIXXNCNC BPCI (RS-232C) - Data or Voice Record TAPINCNCXX DKT10005XXXX DKT2000XXXX DKT3000X6X4XX IPT1020-SDNCNCXX Ethernet LANAETSNCNC Used for ACTU1. Built-in ACTU2. Built-in V.34 Admin ModemAMDSNCNCXBuilt-in Base Cabinet DKSUB424 or DKSUB280XNCNCNC CHSUB672NCXNCX CHSUB112NCNCXNC Expansion Cabinet DKSUE424XNCNCNC CHSUE672NCXNCX CHSUE112NCNCXNC Data Cable for Strata DK424 Exp. Cabinet XNCNCNC Data Cable for CTX670 Exp. Cabinet NCXNCX Data Cable for CTX100 Exp. Cabinet NCNCXNC Power Supply Unit RPSU424 (120VAC)XNCNCNC BPSU672 (120VAC/208VAC/240VAC power supply)NCXNCX APSU112 (120VAC)NCNCXNC Conduit Connection BoxRCCB2XNCNCNC BCCB120 (120V box) NCXNCX BCCB240 (240V box)NCXNCX Battery Distribution BoxRBDB2XNCNCNC BBDB1 (new Battery Dist. Box, 7 BBTC2A- 2.0M) XXNCX Power Strip RPSB1 (120VAC power strip)XNCNCNC RPSB2 (120VAC power strip)XXNCX BPSB240 (240VAC power strip)NCNCNCX Battery Cable PBTC-3MXXNCX BBTC1A-2.0MNCXNCX ABTC-3MNCNCXNC Battery ChargerABCS1Built-inBuilt-inXBuilt-in X = CompatibleNC = Not Compatible 1. If the BECU/BBCU replaces the DK424i processors, then the system is upgraded to a CTX670. 2. The RCOS1A cannot be installed on the RCOU3A. The RCOS3 can be installed on the RCOU1A. 3. Requires Release 4.x software. 4. BPTU1, RPTU2, or BIPU-Q1A is required for QSIG Networking. 5. DKT1000-series telephones do not support continuous DTMF tones. 6. Functions as a DKT2000. Table 26 Hardware Compatibility (continued) CategoryUnit NameDK280 & DK424DK424iCTX100CTX670
Appendix – Specifications Public Network Requirements 90Strata CTX General Description 06/03 Public Network Requirements The PCB requirements for connecting to the public network are shown in Ta b l e 2 7. Table 27 PCB Network Requirements PCB/InterfaceFacility Interface CodeNetwork JackRinger EquivalenceUniversal Service Order Code RSTU3/RDSU1 (Off-premises Station) 1. Only RDSU ckts. 1~4 provide Off-premises Station (OPS) ability. RDSU must use OL13A or OL13B if providing –24 volt loop voltage. If equipped with the –48 volt loop option PCB (R48S), OL13A, OL13B, or OL13C may be used for OPS connection. OL13B (RSTU3, –24V) OL13C (RSTU3, RDSU with R48S-48V) RJ21XN/A9.0F RCOU/RCOS2 (loop start line) 2. Loop current requirements for Strata loop and ground start lines: 20 milliamperes (mA) min./120 mA max. 02LS2RJ14C/RJ21X (all others)0.3BN/A RDDU02RV2-T (Dealer-supplied CSU)RJ14C/RJ21X0.0BAS.2 REMU type 1 or type 2 TL11M, 2-wire TL31M, 4-wire TL12M, type 2, 2-wire TL32M, type 2, 4-wireRJ2EX RJ2GX RJ2FX RJ2HXNot Available (N/A)9.0F RGLU2, RGLU3 (ground or loop start line)202GS2 (ground) 02LS2 (loop)RJ14C/RJ11CX0.3BN/A RDTU (DS-1/T1)3 3. When ordering DS-1/T1 circuits, six items must be specified: The number of channels per T1 circuit, fractional increments are normally 8, 12, or 16 channels, full service is 24 channels. Unused channels must be bit-stuffed. CO line types assigned to each channel: Loop Start, Ground Start, Tie (Wink or Immediate Start), DID (Wink or Immediate). Frame Format Type: Super Frame (SF) or Extended Super Frame (ESF). The T1 provider normally specifies the Frame Format to be used, either is adequate for CO digital voice lines. ESF provides a higher level of performance monitoring, but requires trained personnel and the ESF CSU normally costs more than an SF only CSU. Line Code Type: Alternate Mark Inversion (AMI) or Bipolar 8 Zero Substitution (B8ZS). The T1 provider normally specified the Line Code to be used, either is adequate for T1 CO digital voice lines. The customer may have to provide the Channel Service Unit (CSU) to interface the CTX T1 circuit to the Telco T1 circuit. (CSUs are a Telco requirement.) RDTU Network Channel Interface Codes: 04DU9-BN, 04DU9-DNZZ, 04DU9-1SN, 04DU9-1KN, 04DU9-1ZN. (See last bullet note on Note 2 below.)RJ48C/RJ48X/ RJ48MN/A6.0P RCIU2/RCIS (Caller ID)N/ARJ21X/RJ14C0.3BN/A RPTU (PRI)4, 5 4. For information on how to order ISDN PRI/BRI circuits, you should refer to the Toshiba ISDN Training CBT. ISDN circuits may require a customer-provided CSU for PRI and/or Terminal Adapter or Network Terminal units for BRI. In U.S. CSU/TAs must be UL-listed in the U.S. In Canada, they must be CSA certified. 5. RPTU2 is required for QSIG private networking. 04DU9-1SN (Dealer-supplied CSU)RJ48C/RJ48M N/A6.0P RPTU (QSIGI)04DU9-1SN (Dealer-supplied CSU)RJ48C/RJ48M RBSU/RBSS (S/T, BRI)302IS5 (Dealer-supplied NT-1)RJ48C/RJ48X RBUU/RBUS (U, BRI)302IS5RJ48C/RJ48X RMCU/RCMS (CAMA)02RV2-ORJ11C/RJ21-X
Appendix – Specifications Station Loop Lengths Strata CTX General Description 06/0391 Station Loop Lengths In a single site installation, the Base and optional Expansion cabinets must be placed within the allowed maximum distance of each other as designated by Ta b l e 2 8. Table 28 Station Loop Lengths1 1. When the system is powered by backup battery, range may be less as the backup battery is discharged. Mode Maximum line length (24 AWG) 1 Pair2 Pair1 Pair plus external power 2 2. Two-pair wiring or optional telephone power supply is required to achieve maximum range in all cases. DKT3000 or DKT2000-series3 3. BDKS does not provide the power wire pair, an external power supply is required to achieve maximum range. 1000 ft. (303m) 1000 ft. (303m)1000 ft. (303m) DKT with BVSU or DVSU DKT with BHEU or HHEU DKT with BPCI DKT with BPCI + BHEU DKT with BVSU + BHEU or DVSU + HHEU DKT with DADM3020 or DADM2020 (1 ADM)675 ft. (204m) DKT with DADM3020 or DADM2020 (2 ADMs)500 ft. (151m) DDSS3060 or DDSS2060 1000 ft. (303m)BATI, RATIn/an/a DDCB31000 ft. (303m)1000 ft. (303m) Standard telephones, voice mail, AA, etc. Approx. 3000 ft. (909 m) with 150 ohm device.4 4. See manufacturer’s product specifications for exact resistance of device. n/an/a Approx. 9000 ft. (2727 m) with 150 ohm device. 4 Approx. 21000 ft. (6363 m) with 150 ohm device. 4 IPT1020-SD The IP telephone interface is 10Base-T/100Base-TX and requires CAT5/5e/6 twisted pair cabling. The maximum distance between the IP telephone jack and the ethernet device it connects to is 100 meters (328 ft.). This includes the 3 meter (9.84 ft.) straight-through CAT5 cable (black) supplied with the IP telephone. Ethernet devices include BIPU-M2A, servers, routers, etc.
Appendix – Specifications Standard Telephone Ringer Specifications 92Strata CTX General Description 06/03 Standard Telephone Ringer Specifications Specifications for standard telephone ringers appear in Table 29. 3000-series Telephone Option PCBs Digital telephones can be upgraded with option PCBs to add a number of features. Each of these upgrades shares a circuit with the telephone that it is connected to and is not considered a station. See Table 30 for more information. Table 29 Standard Telephone Ringer Specifications RSTU3 or RDSU Ring voltage80V RMS sine wave Ringing capabilityRSTU3: 3.0 REN per circuit RDSU: 1.5 REN per circuit RSTU3 Message Waiting voltage-90 VDC/one telephone per circuit (max.) RSTU3 modem interface data rate14,400 bps maximum Internal and External Ringing Cadence: For Release 1.3 and higher, two types of ringing cadences can be selected in system programming. Ringing Type1: External Ring: 20Hz, 1 sec. ON - 3 sec. Off Internal Ring: 20Hz, 0.4 sec. On - 0.2 sec. Off - 0.4 sec. On - 3 sec. Off Recall: 20Hz, 1 sec. On - 1 sec. Off Ringing Type 2: Same Ringing Cadence as DK. External Ring: 20Hz, 0.4 sec. On - 0.2 sec. Off - 0.4 sec. On - 3 sec. Off11 Internal Ring: 20Hz, 1 sec. On - 3 sec. Off Recall: 20Hz, 1 sec. On - 3 sec. Off Table 30 3000 Telephone Subassembly Upgrades SubassemblyNo. per PhoneFunction BVSU1 1. Telephones with the BPCI cannot have Speaker OCA (BVSU) or Add-on modules. Also, DKT3001 telephones cannot have CTI (BPCI), Speaker OCA (BVSU) or Add-on modules. 1 Speaker Off-hook Call Announce (OCA): Provides interface for digital telephone to receive Speaker OCA. Not required for Handset/ Headset OCA. BHEU or HHEU1Headset and external ringer telephone interface: Can be installed with BVSU, BPCI or DADM. BPCI11Desktop PC Interface for CTI applications. DADM302011 or 2Add-on Module (ADM): Provides telephone with 20 (or 40 with two ADMs) additional feature buttons.
Appendix – Specifications Station Dimensions Strata CTX General Description 06/0393 Station Dimensions Dimensions for the 3000-series, IPT telephones and related equipment are listed in Table 31. Table 31 Station Dimensions DeviceHeight Width Depth InchesmmInchesmmInchesmm 20-button IP Telephone with LCD (IPT1020-SD) 10-button DKT (DKT3010-S) 10-button DKT with LCD (DKT3010-SD) 20-button DKT (DKT3020-S) 20-button DKT with LCD (DKT3020-SD) 14-button DKT with Large LCD (DKT3014-SDL) 4.0 101.5 8.1 205 9.3 in. 235 Digital Single Line Telephone (DKT3001)4.0 101.5 5.9 150 Add-on Module (DADM3020, DADM3120)3.5 88 2.8 70 Direct Station Selection (DSS) Console (DDSS3060)3.5 88 8.1 205 Handset with Handset Cradle (BATHC)2.9 73 2.8 71 9.6 244 10-button DKT with Handsfree Answerback (DKT2010-S) 4.1 104 7.7 195 9.1 230 10-button DKT with LCD (DKT2010-SD) 20-button DKT (DKT2020-S) 20-button DKT with LCD (DKT2020-SD) 20-button DKT with LCD (DKT2020-FDSP) Digital Single Line Telephone (DKT2001)4.2 107 5.5 140 9.1 230 Add-on Module (DADM2020)3.3 85 2.8 70) 9.1 230 Direct Station Selection (DSSS2060) Console3.3 85 7.8 199 9.1 230 External Speaker Amplifier (HESB)10.2 260 10.2 260 4.9 125 Door Phone/Lock Control Unit (DDCB)4.7 120 6.5 165 1.5 38 Door Phone (MDFB)5.5 140 3.1 80 1.3 32 Attendant Console Interface (BATI)1.7 42.4 5.0 126 7.3 185 Handset with Handset Cradle (RATHC)2.8 70 2.8 70 9.5 241 DKT2204-CT Digital Cordless TelephoneHeight Width Depth InchesmmInchesmmInchesmm Base (without antenna)2.25 57.15 4.25 107.95 7.5 Charger Base2.0 50.8 2.75 69.85 2.813 71.45 Handset (with antenna)8.66 219.96 2.2 55.89 1.66 42.16 Charger Base with handset8.25 209.55 2.75 69.85 2.813 71.45 DKT2304-CT Digital Cordless TelephoneHeight Width Depth InchesmmInchesmmInchesmm Base (without antenna)2.25 57.15 4.25 107.95 7.625 193.67 Handset (with antenna)2.0 50.8 5.5 139.7 1.25 31.75 Base with handset (with antennas)9.625 244.47 3.75 95.25 4.5 114.3
Appendix – Specifications System Tones 94Strata CTX General Description 06/03 System Tones Tones which can be heard from speaker or handset are described in Table 32. Table 32 Call Progress Tones To n e N a m eConditionsRinging Cadence Prime Dial TonePrompting to dial [DN] or access code or to press a feature button or to dial 9 + number. 350/440Hz continuously On.Secondary Dial Tone (optional)Prompting to dial [DN] or access code or to press a feature button, with someone on Consultation Hold. DND-Stuttered Dial Tone (optional)Same as Prime Dial Tone with implication of DND activated. MW-Stutter dial tone has priority over this tone.480/620Hz 0.125 sec. 4 bursts apart 0.125 sec., 350/440Hz 3 sec. On, repeat. MW-Stuttered Dial ToneSame as Prime Dial Tone with implication of MW received. This tone has a priority over DND-Stutter dial tone.350/440Hz 0.1 sec. 5 bursts apart 0.1 sec., 3 sec. On, repeat. Entry ToneMore digits are required such as account codes, some indexes, etc.350/440Hz, 0.1 sec. 3 bursts apart 0.1 sec. Ring Back ToneRinging the destination440/480 Hz 1 sec. On, 3 sec. Off, repeat. Success Tone (Confirmation Tone)Operation was successfully accepted.350/440 Hz, 3 bursts of 0.125 sec., apart 0.125 sec. Reject ToneOperation was rejected. After this tone is done, the original conversation is resumed.1209 Hz 0.25 sec., 500 Hz 0.25 sec., 3 times. Busy ToneDestination is busy. Invoke desired feature or retry later. 480/620 Hz, 0.5 sec. On, 0.5 sec. Off, repeat. Reorder ToneEither the operation failed or the call is terminated. Hang up.480/620 Hz, 0.25 sec. On, 0.25 sec. Off, repeat. DND ToneThe destination is in the Do Not Disturb mode.480/620 Hz, 0.125 sec. On, 0.125 sec. Off, repeat. Splash ToneVoice calling starts. Applicable to Voice Paging and Speaker OCA.500 Hz, 1.0 sec. On. Barge-in Warning ToneSomebody is listening to (monitoring) the conversation.440 Hz 1.0 sec. On. External Call Waiting Tone for Standard TelephoneAn external call is waiting. This tone is sent to the receive party only.1209 Hz, 2 bursts of 0.16 sec. apart 0.16 sec., twice, 3 sec. apart. Internal Call Waiting Tone for Standard TelephoneAn internal call is waiting or somebody is listening to (monitoring) the conversation.1209 Hz, 2 bursts of 0.5 sec. On, apart 3.0 sec.
Appendix – Specifications System Tones Strata CTX General Description 06/0395 Ring tones are described, along with their cadences in Ta b l e 3 3. Due to the limitation in the tone generation algorithm, the listed tone duration is slightly different from the actual one. Other types of tones that do not fit in the previous categories are listed in Ta b l e 3 4. Table 33 Ring Tones To n e N a m eDescriptionRinging Cadence Internal/External Ring 1 Incoming call from internal or external party to DKT or IPT. (10 different ring tones are available with R1.3 or higher software.) 500 Hz 1 sec. On, 3 sec. Off, repeat Internal/External Ring 21300 Hz 1 sec. On, 1 sec. Off, repeat Internal/External Ring 11500/640 Hz 1 sec. On, 3 sec. Off, repeat Internal/External Ring 12500/640 Hz 1 sec. On, 1 sec. Off, repeat Internal/External Ring 13860/1180 Hz 1 sec. On, 3 sec. Off, repeat Internal/External Ring 14860/1180 Hz 1 sec. On, 1 sec. Off, repeat Internal/External Ring 151300/1780 Hz 1 sec. On, 3 sec. Off, repeat Internal/External Ring 161300/1780 Hz 1 sec. On, 1 sec. Off, repeat Internal/External Ring 17860/1180 Hz 0.5 sec. On, 1300/1780 Hz 3 sec. Off, repeat Internal/External Ring 18860/1180 Hz 0.5 sec. On, 1300/1780 Hz 1 sec. Off, repeat External/Internal Ring for Standard Telephones Internal and External Ringing Cadence: For Release 1.3 and higher, two types of ringing cadences can be selected in system programming. Ringing Type1: External Ring: 20Hz, 1sec. On - 3 sec. Off Internal Ring: 20Hz, 0.4 sec.On - 0.2 sec. OFF - 0.4 sec.On - 3 sec. Off Recall:20Hz, 1sec. On - 1sec. Off Ringing Type 2: Same Ringing Cadence as DK. External Ring: 20Hz, 0.4 sec. On - 0.2 sec. Off - 0.4 sec. On - 3 sec. Off Internal Ring: 20Hz, 1 sec. On - 3 sec. Off Recall: 20Hz, 1 sec. On - 3 sec. Off RecallA call is returned & needs to be answered.2 kHz interrupted at 10 Hz, 1 sec. On, 1 sec. Off, repeat. Recall for Standard TelephoneA call is returned & needs to be answered.20 Hz, 1 sec. On, 1 sec. Off, repeat. Ring Over Busy (Internal)Call rings an idle [DN] or CO line button while phone is busy. Another internal call offered to an idle button while the station is busy. 2 kHz interrupted at 10 Hz, 1 sec. On, 3 sec. Off, twice or repeat (For Call Waiting, twice only). Call Waiting (Internal)Internal call is waiting for the busy button. A call is camped-on to a busy [DN] or CO line button. Ring Over Busy (External)Call rings an idle [DN] or CO line button while phone is busy. Another incoming call is offered to an idle button while phone is busy. 2 kHz interrupted at 10 Hz, 2 bursts of 0.25 sec. apart 0.25 sec., twice apart 3 sec. or continuous (For Call Waiting, twice only). Call Waiting (External)External call is waiting for busy station. A call is camped-on to a busy [DN] or CO line button. Volume Control - Ringing SpeakerAdjusts speaker volume for ringing state.500/640 Hz continuous. Table 34 Administration/Programming Tones To n e N a m eDescriptionRinging Cadence Confirmation ToneDuring user programming or administration mode, indicates the acceptance of input.2 kHz two bursts of 0.125 sec. apart 0.125 sec. Denial ToneDuring user programming or administration mode, indicates the denial of input. 2 kHz 0.75 sec. On. Volume Control - BeepTo adjust the beep volume.2 kHz interrupted 10 Hz, continuous.
Appendix – Specifications IPT Voice Quality Considerations 96Strata CTX General Description 06/03 IPT Voice Quality Considerations The quality of service (Excellent, Good, Fair, and Bad) provided by CTX IP Telephones depends heavily on the LAN parameters as shown in Table 35 below. Table 35 Quality of Service IP Network Quality Parameters Speech Excellent: No one perceives delay.1 1. Ratings of Excellent, Good, Fair, Bad were based on the tester in a quiet room and the tester could not see the other call party. Good: Very few people perceive delay. 1 Fair: Some people may perceive delay. 1 Bad: Many people may perceive delay.1 IPT is usable even with a Bad rating if delay is acceptable. (CODEC at default)(CODEC at default)(CODEC at default)(CODEC at default) Latency (Round trip delay)2 2. When selecting router equipment, the Latency, Jitter, Packet loss and Packet error conditions above should be considered as well as the bandwidth. Bandwidth can be calculated with the CODEC and packet size. For better results, more bandwidth may be required, depending on the amount of overall data traffic. For more details on QoS refer to “A Handbook for Successful VoIP Deployment: Network Testing, QoS, and More” by John Q. Walker, NetIQ Corporation on www.netiq.com. 20ms or less50ms or less100ms or less200ms or less Jitter220ms or less50ms or less50ms or less50ms or less (-10 ms~ +10ms)(-25ms~ +25ms)(-25ms~ +25ms)(-25ms~ +25ms) Packet loss2110-3 or less110-3 or less110-3 or less110-3 or less Packet error2110-4 or less110-4 or less110-4 or less110-4 or less Speech quality dependency on CODEC parameters Speech quality as the combination of the above network environment and the CODEC parameters. CODEC and packet interval Bandwidth per channel (Single direction, control channel included) G.711 at 20ms interval Prg 250-07 Prg 152-0111 5 k b p s3 (Speech 88kbps) 3. Use this number to estimate the bandwidth needed for the CODEC and interval timing required to achieve an expected Quality of Service (Excellent, Good, etc). This bandwidth includes header and control information and a 25% margin for network traffic variances. ExcellentGoodFairBad G.711 at 40ms interval Prg 250-07 Prg 152-0199kbps3 (Speech 76kbps) ExcellentGoodFairBad G.729A at 40ms interval Prg 250-07 Prg 152-0129kbps3 (Speech 20kbps) GoodGoodFairBad G.729A at 80ms interval Prg 250-07 Prg 152-0122kbps3 (Speech 14kbps) GoodFairBadBad