The PBX phone system has become more advanced today, leading to convenience of employees who want to bring works to home and making companies earn more money. This strategic business in communication is termed as telecommuting with the use of the internet. This new development in telecommuting is also dubbed as "going green", with the technologies of new Voice over Internet Protocol or VoIP.

Telecommuting has faced the challenge of bringing the telephone and data facilities to employees' homes, and making sure that their productivity and oversight remain as if they are physically in their offices. Today, the advanced technology of VoIP and Hosted PBX technology, companies have arranged the wishes of employees to work at their homes. This phone system of a corporation can now be extended into a home at a low cost without necessarily upgrading massively the present office private branch exchange or the so-called grandstream distributor system. Note that in doing this, traditional PBX manufacturers are not relied or depended on its proprietary vendor solutions in order to accomplish the system. 

For those who have just installed the system, putting in a new hosted PBX system is easy. This Hosted PBX is a VoIP based PBX system where it is in the cloud of the provider location where the functionality of the PBX resides. Through the Hosted Grandstream GXP1625 Muscat system, remote phone is supported and is being provided with the normal features of PBX like voicemail, call hold, transfer, three way calling and others easily without depending on the location of the host. 

A company with a large PBX system, it is necessary to connect the office PBX to the VoIP network with the use of SIP or Session Initiated Protocol trunking in order to integrate effectively the home and office phones. This means both the office PBX and home phone are to be connected to the internet and use the service of VoIP SIP from a VoIP vendor.

Once the company starts the service, the vendor sends a SIP VoIP phone to the house of its employee, and the employee plugs it into a router or switch and make use of the existing broadband internet service of the residence in order to proceed and carry out the voice traffic. There are several SIP phones in the market that are widely supported. They charge a monthly fee for the home service, usually around $20 to $50 per month depending what are included in the plan like features and free minutes. Compared to the local phone company, going into SIP trunking system would save a company some money and so it is good to review the cost effectivity of the system. It is now easy and inexpensive to integrate your legacy PBX with hosted phones.