Grandstream Networks HT701 User manual

HT70X USER MANUAL
Grandstream Networks, Inc.
HT701/ HT702/HT704
Analog Telephone Adaptor
HT701 HT702 HT704

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 2 of 52
HT70X USER MANUAL
INDEX
GNU GPL INFORMATION ..........................................................................5
CHANGE LOG.............................................................................................6
CHANGES FROM 1.0.1.6 USER MANUAL ..........................................................................................6
WELCOME ..................................................................................................7
SAFETY COMPLIANCES......................................................................................................................7
WARRANTY ..........................................................................................................................................7
CONNECT YOUR HT70X............................................................................9
EQUIPMENT PACKAGING...................................................................................................................9
CONNECTING THE HT70X ..................................................................................................................9
HT70X FEATRUES....................................................................................13
SOFTWARE FEATURES OVERVIEW................................................................................................13
HARDWARE SPECIFICATION...........................................................................................................15
BASIC OPERATIONS...............................................................................16
UNDERSTANDING HT70X VOICE PROMPT.....................................................................................16
PLACING A PHONE CALL..................................................................................................................18
Phone or Extension Numbers.......................................................................................................18
Direct IP Calls...............................................................................................................................18
CALL HOLD.........................................................................................................................................19
CALL WAITING....................................................................................................................................19
CALL TRANSFER................................................................................................................................19
Blind Transfer ...............................................................................................................................19
Attended Transfer.........................................................................................................................20
3-WAY CONFERENCING ...................................................................................................................20
FAX SUPPORT....................................................................................................................................21
CALL FEATURES.....................................................................................22
CONFIGURATION GUIDE ........................................................................24
CONFIGURING THE HT70X THROUGH VOICE PROMPTS ............................................................24
CONFIGURING THE HT70X VIA WEB BROWSER...........................................................................24
Access the Web Configuration Menu...........................................................................................25

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 3 of 52
IMPORTANT SETTINGS.....................................................................................................................25
NAT Settings.................................................................................................................................25
DTMF Methods.............................................................................................................................26
Preferred VOCODER (Codec)......................................................................................................26
SAVING THE CONFIGURATION CHANGES.....................................................................................45
REBOOTING THE HT70X FROM REMOTE.......................................................................................45
CONFIGURATION THROUGH A CENTRAL SERVER......................................................................45
SOFTWARE UPGRADE............................................................................47
FIRMWARE UPGRADE THROUGH TFTP/HTTP/HTTPS..................................................................47
INSTRUCTIONS FOR UPLOAD FROM LOCAL DIRECTORY:..........................................................48
INSTRUCTIONS FOR LOCAL FIRMWARE UPGRADE USING TFTP SERVER: .............................48
CONFIGURATION FILE DOWNLOAD................................................................................................49
FIRMWARE AND CONFIGURATION FILE PREFIX AND POSTFIX .................................................49
MANAGING FIRMWARE AND CONFIGURATION FILE DOWNLOAD..............................................49
RESTORE FACTORY DEFAULT SETTING.............................................51

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 4 of 52
TABLE OF FIGURES
HT70X USER MANUAL
FIGURE 1: CONNECTING THE HT70X....................................................................................................10
FIGURE 2: HT70X CONNECTION DIAGRAM..........................................................................................12
TABLE OF TABLES
HT70X USER MANUAL
TABLE 1: DEFINITIONS OF THE HT70X CONNECTORS...........................................................................10
TABLE 2: BASIC DEFINITIONS OF THE HT70X LEDS PATTERN .........................................................................10
TABLE 3: ADVANCED DEFINITIONS OF THE HT70X LEDS PATTERN..................................................................11
TABLE 4: HT70X SOFTWARE FEATURES ........................................................................................................13
TABLE 5: HT70X HARDWARE AND TECHNICAL SPECIFICATIONS........................................................15
TABLE 6: HT70X IVR MENU DEFINITIONS ......................................................................................................16
TABLE 7: HT70X CALL FEATURES..................................................................................................................22
TABLE 8: BASIC SETTINGS ........................................................................................................................26
TABLE 9: STATUS PAGE.............................................................................................................................28
TABLE 10: ADVANCED SETTINGS.............................................................................................................30
TABLE 11: ACCOUNT SETTINGS......................................................................................................................35
TABLE 12: HT704 FXS PORTS SETTINGS ......................................................................................................44
CONFIGURATION GUI INTERFACE EXAMPLES
HT70X USER MANUAL
(http://www.grandstream.com/products/ht_series/ht701/documents/ht70x_gui.zip)
1. SCREENSHOT OF ADVANCED USER CONFIGURATION PAGE
2. SCREENSHOT OF BASIC SETTINGS CONFIGURATION PAGE
3. SCREENSHOT OF FXS PORT CONFIGURATION
4. SCREENSHOT OF STATUS PAGE
5. SCREENSHOT OF LOGIN PAGE
6. SCREENSHOT OF REBOOT PAGE
7. SCREENSHOT OF REBOOTING PAGE

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 5 of 52
GNU GPL INFORMATION
HT70X firmware contains third-party software licensed under the GNU General Public License (GPL).
Grandstream uses software under the specific terms of the GPL. Please see the GNU General Public
License (GPL) for the exact terms and conditions of the license.
Grandstream GNU GPL related source code can be downloaded from Grandstream web site from:
http://www.grandstream.com/support/faq/gnu_gpl .

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 6 of 52
CHANGE LOG
This section documents significant changes from previous versions of HT70X user manuals. Only major
new features or major document updates are listed here. Minor updates for corrections or editing are not
documented here.
CHANGES FROM 1.0.1.6 USER MANUAL
Added the option to enable/disable hook flash [Enable Hook Flash]
Removed firmware key from Advanced Setting page
CHANGES FROM 1.0.0.18 USER MANUAL
Added ability to configure delay for the off hook auto dial [Offhook Auto-Dial Delay]
Added display of gs_cpe version in status page [CPE]
Added a configuration parameter to overdrive User-Agent header [Use SIP User-Agent Header]
Added [CPE SSL Certificate] and [CPE SSL Private Key] in "Advanced" web page
Added an option to Enable/Disable each FXS Port [Enable Ports]
Split function Use Random Port into [Use Random SIP Port] and [Use Random RTP Port] in all content

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 7 of 52
WELCOME
Thank you for purchasing Grandstream’s HT70X, the affordable, feature rich Analog Telephone Adaptor.
Grandstream HandyTone70X is a new addition to the popular HandyTone ATA product family. It features
the rich audio quality, a broad range of voice codecs, and functionality including one independent SIP
account per FXS port.
This manual will help you learn how to operate and manage your HandyTone70X Analog Telephone
Adaptor and make the best use of its many upgraded features including simple and quick installation, 3-
way conferencing, direct IP-IP Calling, and new provisioning support among other features. This HT70X
is very easy to manage and configure, and is specifically designed to be an easy to use and affordable
VoIP solution for both the residential user and the teleworker.
SAFETY COMPLIANCES
The HT70X phone complies with FCC/CE and various safety standards. The HT70X power adaptor is
compliant with UL standard. Only use the universal power adapter provided with the HT70X package.
The manufacturer’s warranty does not cover damages to the phone caused by unsupported power
adaptors.
WARRANTY
If you purchased your HT70X from a reseller, please contact the company where you purchased your
device for replacement, repair or refund. If you purchased the product directly from Grandstream, contact
your Grandstream Sales and Service Representative for a RMA (Return Materials Authorization) number
before you return the product. Grandstream reserves the right to remedy warranty policy without prior
notification.
Caution: Changes or modifications to this product not expressly approved by Grandstream, or operation
of this product in any way other than as detailed by this User Manual, could void your manufacturer
warranty. Please do not use a different power adaptor with the HT70X as it may cause damage to the
products and void the manufacturer warranty.

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 8 of 52
This document contains links to HT70X GUI Interfaces. Please download these examples for
your reference here:
http://www.grandstream.com/products/ht_series/ht701/documents/ht70x_gui.zip
This document is subject to change without notice. The latest electronic version of this user
manual is available for download at:
http://www.grandstream.com/products/ht_series/ht701/documents/ht70x_usermanual_english.pdf
Reproduction or transmittal of the entire or any part, in any form or by any means, electronic or print, for
any purpose is not permitted without the express written permission of Grandstream Networks, Inc.

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 9 of 52
CONNECT YOUR HT70X
Connecting the HT70X is easy. Before you begin, please verify the contents of the HT70X package.
EQUIPMENT PACKAGING
The HT70X ATA package contains:
One HT70X Main Case
One Universal Power Adaptor
One Ethernet Cable
One Vertical Stand (Only on HT702 and HT704 Packages)
CONNECTING THE HT70X
The HT70X is designed for easy configuration and easy installation. Configure the HT70X following the
directions in the Configuration section of this manual.
1. Insert a standard RJ11 telephone cable into the Phone port and connect the other end of the
telephone cable to a standard touch-tone analog telephone.
2. Insert the Ethernet cable into the Internet or LAN port of the HT70X and connect the other end of
the Ethernet cable to an uplink port (a router or a modem, etc.)
3. Insert the power adapter into the HT70X and connect it to a wall outlet.
The HT70X Analog Telephone Adaptor is an all-in-one VoIP integrated device designed to be a total
solution for networks providing VoIP services. The HT70X VoIP features and functions are available
using a regular analog telephone.

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 10 of 52
HT702 HT704
FIGURE 1: DIAGRAM OF HT70X
TABLE 1: DEFINITIONS OF THE HT70X CONNECTORS
DC 12V
Power adapter connection
Internet Port (RJ-45)
Connect to the internal LAN network. (HT701 Only)
LAN Port (RJ-45)
Connect to the internal LAN network. (HT702 and HT704 Only)
RESET
Factory Reset button: Press for 7 seconds to reset factory default settings.
Phone Port(s) (RJ-11)
FXS port: to be connected to analog phones / fax machines.
There are four (4) LED buttons that help you manage the status of your HandyTone 701, and
there are five (5) LED buttons that help you manage the status of your HandyTone 702 and 704.
TABLE 2: BASIC DEFINITIONS OF THE HT70X LEDS PATTERN
POWER LED
Indicates Power. Remains ON when power is connected
Internet LED
Indicates Access to Internet. Remains ON while there is Access (HT701 and HT702 Only)
Link/Activity LED
Indicates if There is Activity on the Internet Port (HT701 and HT702 Only)
Internet Port
(RJ-45 connector
10/100 Mbps)
Reset
Phone
(RJ-11 FXS Ports)
Power
Supply
(12V;0.5A)
HT-701
Display LEDs
(green)
LAN Port
(RJ-45 connector
10/100 Mbps
with LEDS)
Reset
Power
Supply
(12V;1A)
Phone (RJ-11
FXS Ports)
LAN Port
(RJ-45 connector
10/100 Mbps )
Reset
Power
Supply
(12V;1A)
Phone (RJ-11
FXS Ports)
Display LED’s (green)
Display LED’s (green)

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 11 of 52
PHONE LED
Indicate status of the respective FXS Ports-PHONE on the back panel
Unregistered –OFF
Registered and Available –ON (Solid Green)
Off-Hook / Busy –Blinking every second
Slow blinking FXS LEDs indicates voicemail
NOTE: All LEDs display green when ON
TABLE 3: ADVANCED DEFINITIONS OF THE HT70X LEDS PATTERN
LED-01
Device has normal power
Power
ON
LED-02
Power Error: Power is removed from the device or power
supply with improper voltage is plugged in
Power
OFF
LED-03
Line X is registered normally to the sip providers network
and is ready to make a call
Phone
ON
LED-04
Voice mail waiting for Line X
Phone
1sec ON / 3sec OFF
LED-05
Device has normal WAN connection and has obtained IP
address
Internet
ON
LED-06
Internet link error: Device is powered up and ready to
connect to the Internet but the WAN/INTERNET port is
down
Internet
OFF
LED-07
Internet DHCP Error: Device is properly connected but it is
unable to retrieve an IP address from the device it is
connected to
Internet
0.25sec ON/ 0.25sec OFF
LED-08
Line Registration failed: Device is properly setup, can
connect to provider's network, but cannot register to
provider's SIP proxy (no 200 OK)
Phone
OFF
LED-09
Device is connected (has physical data link) but there are
incorrect network settings typically associated with PPPoE
connection failure
Internet
0.25sec ON/ 0.25sec OFF
LED-10
Hazardous potential test failed: Hazardous AC or DC
voltage is present on the tip and ring or both signals of
phone line X
Phone
0.25sec ON/ 0.25sec OFF
LED-11
Foreign electro Motive Force (EMF) Test fail. Foreign
voltage is present on the tip, ring or both signals of phone
line. Device has detected additional external Phone
voltage on the FXS phone line.
Phone
0.25sec ON/ 0.25sec OFF
LED-12
Resistive fault test failed. Either tip or ring is shorted to
ground or they are shorted to each other.
Phone
0.25sec ON/ 0.25sec OFF

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 12 of 52
LED-13
Receiver off hook test fail. One or more phones are off
hook on phone line during test.
Phone
0.25sec ON/ 0.25sec OFF
LED-14
REN test failed –high REN detected. Too many parallel
phones connected to phone line X
Phone
0.25sec ON/ 0.25sec OFF
LED-15
Line is active
Phone
1 sec ON/ 1 sec OFF
LED-16
Line inactive
Phone
ON
LED-17
During Provisioning Stage*
Internet /
Phone
0.2sec ON/ 0.2sec OFF
LED-18
During Firmware Recovery Stage*
Internet /
Phone
0.4sec ON/ 0.4sec OFF
*Note: In Provisioning and Firmware Recovery Stage, the power LED is Steady ON.
FIGURE 2: HT70X CONNECTION DIAGRAM
Internet
ADSL/Cable
Modem Ethernet
LAN
FXS
Fax
Cordless
Phone
Analog
Phone
HT701/702/704

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 13 of 52
HT70X FEATRUES
The HT70X is a full feature voice and fax-over IP device that offers a high-level of integration including a
10M/100Mbps network port and one FXS telephone port, market-leading sound quality, rich
functionalities, and a compact and lightweight design. The VoIP network signaling protocol supported is
SIP. The HT70X is fully compatible with SIP industry standard and can interoperate with many other SIP
compliant devices and software on the market. Moreover, it supports comprehensive voice codecs
including G.711 (a/µ-law), G.723.1, G.726-32, G.729 and iLBC.
SOFTWARE FEATURES OVERVIEW
Supports Voice Codecs:
G.711 (a/µ-law), G.723.1, G.726-32, G.729 and iLBC.
T.38 Fax
Comprehensive Dial Plan support for Outgoing calls.
G.168 Echo Cancellation
Voice Activation Detection (VAD), Comfort Noise Generation (CNG), and Packet Loss
Concealment (PLC)
Supports PSTN/PBX analog telephone sets
TABLE 4: HT70X SOFTWARE FEATURES
HT 701
HT 702
HT 704
Telephone Interfaces
1 FXS ports
2 FXS ports
4 FXS ports
SIP Provisioning
1 Sip Account, 1 Profile
2 Sip Accounts, 2 Profiles
4 Sip Accounts, 2 Profiles
Number of
Concurrent Calls
1 Concurrent Call
2 Concurrent Calls
4 Concurrent Calls
Voice over Packet
Capabilities
Voice Activity Detection (VAD) with CNG (comfort noise generation) and PLC (packet loss
concealment), Dynamic Jitter Buffer, Modem detection & auto-switch to G.711, Packetized
Voice Protocol Unit (supports RTP/RTCP protocol), G.168 compliant Echo Cancellation,
LEC (line echo cancellation) with NLP, Asymmetric RTP stream
Voice Compression
G.711 + Annex I (PLC), Annex II (VAD/CNG format) encoder and decoder, G.723.1, G.726-
32(ADPCM), G.729, iLBC, G.726-32 provides proprietary VAD, CNG, and signal power
estimation, Voice Play Out unit (reordering, fixed and adaptive jitter buffer, clock

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 14 of 52
synchronization), AGC (automatic gain control), Status output, Decoder controlling via voice
packet header
DHCP Server/Client
Yes, DHCP Client only
Telnet Server
Yes
Fax over Ip
T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-
through, Fax Datapump V.17, V.19, V.27ter, V.29 for T.38 fax relay
QoS
Diffserve, TOS, 802.1 P/Q VLAN tagging
Transport Protocol
RTP/RTCP
DTMF Method
Flexible DTMF transmission method, user interface of In-audio, RFC2833, and/or SIP Info
IP Signaling
SIP (RFC 3261)
Provisioning
TFTP, HTTP, HTTPS, TR-069, XML
Control
TLS/SIPS , SIP over TCP/TLS
Device Management
Web interface or via secure encrypted AES or non-encrypted central configuration file for
mass deployment using Grandstream binary file or xml format. Auto/manual provisioning
system or via built-in IVR.
NAT-friendly remote software upgrade (via TFTP/HTTP/HTTPS) for deployed devices
including behind firewall/NAT. Syslog support. Full support of TR-069 management protocol
and Telnet access.
Dial Plan
Yes
Caller ID
Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
Call Handling
Features
Caller ID display or block, Call waiting caller ID, Call waiting/flash, Call transfer, hold,
forward, 3-way conferencing, message waiting, Do-Not-Disturb (DND), call-return service

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 15 of 52
HARDWARE SPECIFICATION
The table below lists the Hardware and Technical specification of HT70X.
TABLE 5: HT70X HARDWARE AND TECHNICAL SPECIFICATIONS
HT701
HT702
HT704
Telephone
Interfaces
1 RJ11 FXS port
2 RJ11 FXS ports
4 RJ11 FXS ports
Network
Interface
1 RJ45 10/100 Mb Base-TX, Full Duplex
1 RJ45 10/100 Mb Base-TX,
Full Duplex port with
connectivity LEDs
LED Indicators
POWER, INTERNET,
LINK/ACTIVITY, PHONE
POWER, INTERNET,
LINK/ACTIVITY,
PHONE1, PHONE2
POWER, PHONE1, PHONE2,
PHONE3, PHONE4
Factory Reset
Button
Yes
Universal
Switching
Power Adaptor
Input: 100–240 VAC/50-60 Hz 0.18A Max
Output: 12VDC, 0.5A, UL certified
Input: 100–240 VAC/50-60 Hz
0.18A Max
Output: 12VDC, 1A, UL certified
Environmental
Operational: 32o–104oF or 0o–40oC
Storage: 14o–140oF or -10o –60o
Humidity: 10–90% Non-condensing
Dimensions
(H x W x D)
26 x 65 x 86mm
28 x 115 x 75mm
28 x 115 x 75mm
Short Haul Loop
5REN, Up to 1Km on 24 AWG
wire
3REN: Up to 1Km on 24 AWG line
Polarity
Reversal / Wink
Yes
EMC
FCC part15 Class B, EN55022, EN55024, CISPR22, and CISPR24
Safety
EN60950-1 & UL60950-1 (UL only for PSU)
Compliance

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 16 of 52
BASIC OPERATIONS
UNDERSTANDING HT70X VOICE PROMPT
HT70X has a built-in voice prompt menu for simple device configuration. The IVR menu and the LED
button work with any of the FXS port. Pick up the handset and dial “***”to use the IVR menu.
TABLE 6: HT70X IVR MENU DEFINITIONS
MENU
VOICE PROMPT
OPTIONS
Main Menu
“Enter a Menu Option”
Press “*” for the next menu option
Press “#” to return to the main menu
Enter 01-05, 07,10, 13-17,47 or 99 menu options
01
“DHCP Mode”,
“Static IP Mode”
Press “9” to toggle the selection
If using “Static IP Mode”, configure the IP address information using
menus 02 to 05.
If using “Dynamic IP Mode”, all IP address information comes from
the DHCP server automatically after reboot.
02
“IP Address “ + IP address
The current WAN IP address is announced
If using “Static IP Mode”, enter 12 digit new IP address. You need to
reset the HT for the new IP address to take Effect.
03
“Subnet “ + IP address
Same as menu 02
04
“Gateway “ + IP address
Same as menu 02
05
“DNS Server “ + IP address
Same as menu 02
07
Preferred Vocoder
Press “9” to move to the next selection in the list:
PCM U / PCM A
iLBC
G-726
G-723
G-729
10
“MAC Address”
Announces the Mac address of the unit.
13
Firmware Server IP
Address
Announces current Firmware Server IP address. Enter 12 digit new
IP address.
14
Configuration Server IP
Address
Announces current Config Server Path IP address. Enter 12 digit
new IP address.
15
Upgrade Protocol
Upgrade protocol for firmware and configuration update. Press “9” to

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 17 of 52
toggle between TFTP / HTTP / HTTPS
16
Firmware Version
Firmware version information.
17
Firmware Upgrade
Firmware upgrade mode. Press “9” to toggle among the following
three options:
- always check
- check when pre/suffix changes
- never upgrade
47
“Direct IP Calling”
Enter the target IP address to make a direct IP call, after dial tone.
(See “Make a Direct IP Call”.)
86
Voice Mail
Number of Voice Mails
99
“RESET”
Press “9” to reboot the device
Enter MAC address to restore factory default setting
(See Restore Factory Default Setting section)
“Invalid Entry”
Automatically returns to main menu
“Device not registered”
This prompt will be played immediately after off hook If the device is
not register and the option “Outgoing Call without Registration” is in
NO
Five Success Tips when using the Voice Prompt
1. “*” shifts down to the next menu option
2. “#” returns to the main menu
3. “9” functions as the ENTER key in many cases to confirm or toggle an option
4. All entered digit sequences have known lengths - 2 digits for menu option and 12 digits for IP
address. For IP address, add 0 before the digits if the digits are less than 3 (i.e. - 192.168.0.26
should be key in like 192168000026. No decimal is needed).
5. Key entry cannot be deleted but the phone may prompt error once it is detected

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 18 of 52
PLACING A PHONE CALL
PHONE OR EXTENSION NUMBERS
1. Dial the number directly and wait for 4 seconds (Default “No Key Entry Timeout”); or
2. Dial the number directly and press # (Use # as dial key” must be configured in web configuration).
Examples:
1. Dial an extension directly on the same proxy, (e.g. 1008), and then press the # or wait for 4 seconds.
2. Dial an outside number (e.g. [phone]), first enter the prefix number (usually 1+ or international
code) followed by the phone number. Press # or wait for 4 seconds. Check with your VoIP service
provider for further details on prefix numbers.
DIRECT IP CALLS
Direct IP calling allows two parties, that is, a FXS Port with an analog phone and another VoIP Device, to
talk to each other in an ad hoc fashion without a SIP proxy.
Elements necessary to completing a Direct IP Call:
1. Both HT70X and other VoIP Device, have public IP addresses, or
2. Both HT70X and other VoIP Device are on the same LAN using private IP addresses, or
3. Both HT70X and other VoIP Device can be connected through a router using public or private IP
addresses (with necessary port forwarding or DMZ).
HT70X supports two ways to make Direct IP Calling:
Using IVR
1. Pick up the analog phone then access the voice menu prompt by dial “***”
2. Dial “47” to access the direct IP call menu
3. Enter the IP address after the dial tone and voice prompt “Direct IP Calling”
Using Star Code
1. Pick up the analog phone then dial “*47”
2. Enter the target IP address.
Note: NO dial tone will be played between step 1 and 2.

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 19 of 52
Destination ports can be specified using “*” (encoding for “:”) followed by the port number.
Examples of Direct IP Calls:
a) If the target IP address is 192.168.0.160, the dialing convention is
*47 or Voice Prompt with option 47, then 192*168*0*160.
followed by pressing the “#” key if it is configured as a send key or wait 4 seconds. In this case,
the default destination port 5060 is used if no port is specified.
b) If the target IP address/port is 192.168.1.20:5062, then the dialing convention would be:
*47 or Voice Prompt with option 47, then 192*168*0*160*5062 followed by pressing the “#” key
if it is configured as a send key or wait for 4 seconds.
NOTE: When completing direct IP call, the “Use Random SIP/RTP Port” should set to “NO”. You
cannot make direct IP calls between FXS1 to FXS2 since they are using same IP.
CALL HOLD
Place a call on hold by pressing the “flash” button on the analog phone (if the phone has that button).
Press the “flash” button again to release the previously held Caller and resume conversation. If no “flash”
button is available, use “hook flash” (toggle on-off hook quickly). You may drop a call using hook flash.
CALL WAITING
Call waiting tone (3 short beeps) indicates an incoming call, if the call waiting feature is enabled. Toggle
between incoming call and current call by pressing the “flash” button. First call is placed on hold. Press
the “flash” button to toggle between two active calls.
CALL TRANSFER
BLIND TRANSFER
Assume that call Caller A and B are in conversation. A wants to Blind Transfer B to C:
3. Caller A presses FLASH on the analog phone to hear the dial tone.
4. Caller A dials *87 then dials caller C’s number, and then # (or wait for 4 seconds)
5. Caller A will hear the confirm tone. Then, A can hang up.
NOTE: “Enable Call Feature” must be set to “Yes” in web configuration page.

FIRMWARE VERSION 1.0.3.1 HT70X USER MANUAL Page 20 of 52
Caller A can place a call on hold and wait for one of three situations:
1. A quick confirmation tone (similar to call waiting tone) followed by a dial-tone. This indicates the
transfer is successful (transferee has received a 200 OK from transfer target). At this point,
Caller A can either hang up or make another call.
2. A quick busy tone followed by a restored call (on supported platforms only). This means the
transferee has received a 4xx response for the INVITE and we will try to recover the call. The
busy tone is just to indicate to the transferor that the transfer has failed.
3. Continuous busy tone. The phone has timed out.
Note: continuous busy tone does not indicate the transfer has been successful, nor does it indicate
the transfer has failed. It often means there was a failure to receive second NOTIFY –check
firmware for most recent release.
ATTENDED TRANSFER
Assume that Caller A and B are in conversation. Caller A wants to Attend Transfer B to C:
1. Caller A presses FLASH on the analog phone for dial tone.
2. Caller A then dials Caller C’s number followed by # (or wait for 4 seconds).
3. If Caller C answers the call, Caller A and Caller C are in conversation. Then A can hang up to
complete transfer.
4. If Caller C does not answer the call, Caller A can press “flash” to resume call with Caller B.
NOTE: When Attended Transfer fails and A hangs up, the HT70X will ring back user A to remind A that B
is still on the call. A can pick up the phone to resume conversation with B.
3-WAY CONFERENCING
The HT701/702/704 supports Bellcore style 3-way Conference.
Instructions for 3-way conference:
Assume that call party A and B are in conversation. Caller A(HT70X) wants to bring third Caller C into
conference:
1. A presses FLASH (on the analog phone, or Hook Flash for old model phones) to get a dial tone.
2. A dials C’s number then # (or wait for 4 seconds).