Calls & Lines

  • Analogue
  • ISDN2
  • ISDN30
  • SIP Trunks

Analogue

Analogue phone lines are copper cables which can be used for transmitting voice and data.

They are primarily used for voice calls as they have limited bandwidth. However, these telephone lines can also be a cost-effective solution for small businesses. Analogue lines are inexpensive to install and you can use one number across multiple lines. Here at HTL Telecom Limited we can supply an analogue line at a very lower cost and this type of line is still used for a wide range of office needs, such as Alarm, PDQ machine or ADSL.

For more information call our sales line on

0121 360 4824

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ISDN2 Telephone Lines

For small businesses that cannot afford any breaks in data transmission.

With ISDN2e System you can connect to a small switch (like the BT Quantum) with up to 60 channels. Channels are sold in pairs and can be bonded to increase bandwidth for things like reliable video-conferencing.

For more information call our sales line on

0121 360 4824

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ISDN30

For large businesses that need high-quality, video-conferencing, consistent transfer of large data files, or that operate call centres.

As well as being able to have an unlimited number of channels (sold singularly), ISDN30 customers can also bond channels to increase bandwidth. ISDN30 supports WAN to link 2 or more sites.

For more information call ours ales line on

0121 360 4824

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SIP Trunks

A SIP Trunk is a facility that allows the placing of outbound calls and the receiving of inbound calls using an internet connection, rather than using an ISDN line. Calls to and from the PSTN are supported.

They are fast becoming the standard technology that allows businesses to make and receive telephone calls without the need for an expensive ISDN circuit. The Quality of Service (QoS) has contributed to its increasingly widespread adoption. Session Initiation Protocol (SIP) is used to set-up and 'tear-down' telephone calls over IP networks, including the internet. It is this VoIP protocol that is most widely supported by modern devices, including IP-enabled PBXs.

For more information call our sales line on

0121 360 4824

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