Grandstream GXW4224, 24 x RJ11 FXS ports and 1 x 50-pin Telco connector, 1 x 10M/100/1000 Mbps auto-sensing RJ45 port, G.711, G. 723, G.726

VoIP‑шлюз Grandstream GXW4232 — высокопроизводительное FXS‑решение

Grandstream GXW4232 — это корпоративный **аналоговый VoIP шлюз высокой плотности** с 32 FXS‑портами, предназначенный для интеграции большого количества традиционных аналоговых телефонов, факсов и других устройств в IP‑телефонию. Шлюз полностью совместим со стандартом SIP и подходит для офисов, call‑центров, корпоративных систем и других развёртываний, где требуется надёжная работа с SIP‑серверами и большая плотность портов.

Основные характеристики

• 32 FXS‑порта RJ11 и 2 50‑контактных Telco‑коннектора для подключения аналоговых телефонов и факсов
• 1 Gigabit Ethernet порт (10/100/1000 Mbps) с автоопределением скорости
• Графический LCD‑дисплей с подсветкой для отображения состояния и информации
• LED‑индикаторы для каждого телефонного порта, LAN и сетевой активности
• Поддержка до четырёх SIP‑серверных профилей и независимых SIP‑аккаунтов для каждого порта

Функции телефонии

• Стандартные функции вызовов: отображение и блокировка Caller ID, ожидание вызова, удержание, слепой и сопровождаемый перевод, переадресация, «Не беспокоить», тристоронняя конференция
• Гибкие планы набора, автодозвон и уведомления о пропущенных вызовах
• Поддержка широкого набора голосовых кодеков: G.711, G.723.1, G.726, G.729A/B, iLBC, Opus и других

Fax и качество связи

• Поддержка Fax‑over‑IP (T.38) с автоматическим переходом на G.711 для Fax Pass‑through
• Подавление эха класса carrier‑grade, динамический jitter‑буфер и автоматическое обнаружение модема

Безопасность и управление

• Поддержка шифрования и защиты трафика: SRTP, TLS/SIPS, HTTPS
• Автоматическое и централизованное развертывание через TR‑069, TFTP, HTTP/HTTPS и защищённые XML‑конфигурации
• Управление через веб‑интерфейс, syslog и протоколы для централизованного контроля

Сеть и протоколы

• Поддержка TCP/UDP, RTP/RTCP, DHCP, DNS, NTP, STUN, PPPoE и прочих стандартных сетевых протоколов
• Поддержка QoS с DiffServ, ToS, 802.1P/Q VLAN tagging для приоритизации трафика

Эксплуатация и монтаж

• Корпус 1U для настольного или 19″ стоечного монтажа
• Рабочая температура: 0 °C – 45 °C, влажность: 10 % – 90 % без конденсации
• Габариты примерно 440 × 255 × 44 мм; вес около 2.6 кг

Преимущества

• Высокая плотность аналоговых подключений — до 32 линий в одном устройстве
• Гибкая интеграция аналоговых телефонов и факсов в VoIP‑сети
• Продвинутые функции вызовов и поддержку широкого спектра кодеков
• Продвинутая безопасность и централизованное управление
• Поддержка автоматизированного развертывания и резервирования SIP‑серверов

Область применения

• Офисы малого и среднего бизнеса
• Корпоративные телефонные системы и call‑центры
• Гибридные VoIP + аналоговые инфраструктуры
• Переход от традиционной PSTN‑связи к современным SIP‑сетям

Telephone connections
GXW4216/4224/4232: 16/24/32 x RJ11 FXS ports and 1/1/2 50-pin connectors
Telco GXW4248: 2 50–pin Telco Connectors

Network interfaces
1 x 10M/100M/1000Mbps RJ45 port with automatic identification

LED indicators
LAN Link, LAN Activity, connection for each phone port

LCD display
128x32 backlit graphic LCD display with multi
-language support

Speech transmission functions in batch mode
Windows-based operator-class line echo cancellation, dynamic
delay oscillation buffer, modem detection and automatic switching
to G.711

Speech signal compression
G.711, G.723.1, G.726 (40/32/24/16), G.729 A/B, iLBC

Fax by IP
Fax relay of the third group of the standard T.38 with support for data transfer rates
up to 14.4 Kbit/s and automatic switching to G.711 for fax transmission,
a functional unit for transmitting and receiving data by fax V.17, V.21, V.27ter, V.29
for fax relays of standard T.38

Telephone functions
Displaying or blocking the caller's number, notification
of an incoming call, blind or accompanied call transfer,
forwarding, banning incoming calls, three-way conference call,
dialing the last incoming call, search call, LED indicator
of an incoming message (NEON LED) and intermittent signal, auto-call

Quality of service
DiffServ, TOS, 802.1P/Q VLAN tagging

Network protocols
TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN, LLDP (expected)

DTMF method
Configurable DTMF transmission methods, including In-audio, RFC2833, and/or SIP INFO

Signal transmission
SIP (RFC 3261) over UDP/TCP/TLS

SIP server profiles and accounts for each system
4 separate SIP server profiles for each system and separate accounts
SIP for each phone port

Registration
TFTP, HTTP, HTTPS, TR069

Safety
SRTP*, TLS/SIPS, HTTPS (AES-128 encryption for SRTP*, TLS and HTTPS)

Management
Syslog, HTTPS, Web browser, Telnet, Voice Reminders, TR-069

Universal power supply
GXW4232/4224/4216: Output: DC12V, 5 A; Input: 100~240V
AC, 50~60Hz; GXW4248: Output: DC24V, 6.25A; input:
100~240 vac, 50~60 Hz

Environmental characteristics
Operation: 0°C ~45°C; Storage: -20°C ~60°C; Humidity: 10％ ~ 90% (non
-condensing)
Electrical protection Overvoltage and overvoltage protection (ITU-T K.21 recommendation, basic
level of verification)

Physical characteristics
Device Size: 440 mm (L) x 255 mm (W) x 44 mm (H) (1U) (GXW4248)
440 mm (L) x 185 mm (W) x 44 mm (H) (1U) (GXW4216/4224/4232)
Device weight: 3.21 kg; package weight: 4.31 kg (GXW4248)
2.63 kg; 3.68 kg (GXW4232)
2.57 kg; 3.62 kg (GXW4224)
2.39 kg; 3.48 kg (GXW4216)

Installation
Installation on a table and in a rack with front brackets
Near and far communication 2 REN, up to 6000 feet for 24 AWG wire

Caller's number
Bellcore Type 1&2, ETSI, BT, NTT, and DTMF based CID

Disabling methods
Busy signal, polarity change/instability, current in the circuit

Compliance with regulatory requirements
US Federal Communications Commission: Part 15 (CFR 47) Class B, Council of Europe:
EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1, RoHS, C-TICK:
AS/NZS CISPR 22 Class B, AS/NZS CISPR 24, AS/NZS 60950, ITU-T K.21 (basic
verification level); UL 60950 (power adapter)

Supports up to 3000 users and up to 450 simultaneous calls.

Zero configuration of endpoints
SIP Grandstream

Built-in platform for conferences and meetings;
supports Desktop, Wave application and SIP endpoints

Wave for browsers
Android, iOS, Chrome and Firefox allows you to communicate with all users and UCM6300 solutions.

API is available
for third-party integration, including CRM and PMS platforms.

Advanced protection with secure boot,
a unique certificate and a random default password to protect calls and accounts.

Three Gigabit
RJ45 network ports with automatic recognition, built-in PoE+ and a NAT-enabled router.

Automatic Firewall Bypass Service
NAT provides secure remote connections.

Supports full-range voice codec
Opus and H.264/H.263/H.263+/H.265/VP8 video codec, jitter resistance up to 50% packet loss.

Compatible with GDMS for configuring, managing and monitoring the cloud.
Based on the open source telephony operating system Asterisk* version 16.

Analog FXS ports
8 RJ11 ports

FXO ports PSTN lines
8 RJ11 ports

Network interfaces
Three adaptive Gigabit network ports (dial-up, routable, or dual mode) with PoE+ support

NAT Router
Yes (supports router mode and switch mode)

Peripheral ports
2*USB 3.0, 1* SD Card Slot

The SIDs
Power supply 1/2, FXS, FXO, LAN, WAN,
Heartbeat

LCD screen
Matrix graphic LCD screen, 128x32 dots with buttons
DOWN (down) and OK

Reset button
Yes, long press to reset to factory settings, short press to reboot

VoP
LEC capabilities with NLP Packetized Voice Protocol, 128ms-tail-length Operator-grade echo cancellation, Dynamic jitter buffer,
modem detection and automatic switching to G.711, NetEQ, FEC 2.0, jitter tolerance (up to 50% loss of audio packets)

Voice and fax codecs
Opus, G.711 A-law/U-law, G.722, G722.1 G722.1C, G.723.1 5.3K/6.3K, G.726-32, G.729A/B, iLBC, GSM; T.38

QoS
Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS

API
API for integrating third-party platforms and applications

The operating system
Based on Asterisk version 16

DTMF methods
In-band audio, RFC4733 and SIP INFO

Automatic Configuration protocol
and Plug-and-Play

Mass configuration using an XML configuration file with AES encryption, automatic detection and configuration of subscriber data

IP devices
from Grandstream using ZeroConfig (DHCP Option 66 multicast SIP SUBSCRIBE mDNS), a list of events between the local and
remote backbone

Network protocols
TCP/UDP/IP, RTP/RTCP, ICMP, ARP, DNS, DDNS, DHCP, NTP, TFTP, SSH, HTTP/HTTPS, PPPoE, STUN, SRTP, TLS, LDAP, HDLC, HDLC-ETH, PPP, Frame Relay
(in development), IPv6, OpenVPN®

Hang-up methods
Busy/Overload/Howl Tone, Reverse polarity, Short-term shutdown, Circuit current shutdown

Data encryption
SRTP, TLS, HTTPS, SSH, 802.1X

Telephone connections
GXW4216/4224/4232: 16/24/32 x RJ11 FXS ports and 1/1/2 50-pin Telco connectors GXW4248: 2 50–pin Telco connectors
Network interfaces
1 x 10M/100M/1000Mbps RJ45 Port with Automatic Identification

LED indicators
LAN Link, LAN Activity, connection for each phone port

LCD display
128x32 backlit graphic LCD display with multi-language support

Speech transmission functions in batch mode
Windows-based carrier-class line echo cancellation, dynamic
delay oscillation buffer, modem detection and automatic switching
to G.711

Compression of the speech signal
G.711, G.723.1, G.726 (40/32/24/16), G.729 A/B, iLBC

Fax by IP
Fax relay of the third group of the standard T.38 with support for data transfer rates
up to 14.4 Kbit/s and automatic switching to G.711 for fax transmission,
a functional unit for transmitting and receiving data by fax V.17, V.21, V.27ter, V.29
for fax relays of the standard T.38

Phone functions
Displaying or blocking the caller's number, notification
of an incoming call, blind or accompanied call transfer,
forwarding, blocking incoming calls, three-way conference call,
dialing the last incoming call, search call, LED indicator
of an incoming message (NEON LED) and intermittent signal, auto-dial

Quality of service
DiffServ, TOS, 802.1P/Q VLAN tagging

Network protocols
TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN, LLDP (expected)

DTMF method
Configurable DTMF transmission methods, including In-audio, RFC2833, and/or SIP INFO


SIP Signaling (RFC 3261) over UDP/TCP/TLS

SIP server profiles and accounts for each system
4 separate SIP server profiles for each system and separate SIP accounts for each phone port

Registration
TFTP, HTTP, HTTPS, TR069

Safety
SRTP*, TLS/SIPS, HTTPS (AES-128 encryption for SRTP*, TLS and HTTPS)

Management
Syslog, HTTPS, Web browser, telnet, voice reminders, TR-069

Universal power supply
GXW4232/4224/4216: Output: DC12V, 5 A; Input: 100~240V
AC, 50~60Hz; GXW4248: Output: DC24V, 6.25A; Input:
100~240 VAC, 50~60Hz

Environmental characteristics
Operation: 0°C ~ 45°C; Storage: -20°C ~ 60°C; Humidity: 10％ ~90% (non-condensing)

Electrical protection
Overvoltage and surge protection (ITU-T K.21 recommendation, basic verification level)

Physical characteristics
Device Size: 440mm (L) x 255 mm (W) x 44mm (H) (1U) (GXW4248)

Device weight: 3.21 kg; package weight: 4.31 kg (GXW4248)

Installation
Installation on a table and in a rack using front brackets

Short- and long-range communication
2 REN, up to 6000 feet for 24 AWG wire

The caller's number
Bellcore Type 1&2, ETSI, BT, NTT, and DTMF-based CID

Shutdown methods
Busy signal, polarity change/instability, current in the circuit

Compliance with regulatory requirements
US Federal Communications Commission: Part 15 (CFR 47) Class B, Council of Europe:
EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1, RoHS, C-TICK:
AS/NZS CISPR 22 Class B, AS/NZS CISPR 24, AS/NZS 60950, ITU-T K.21 (basic
verification level); UL 60950 (power adapter)