Cisco VG248 Style

Appendix A How to Use Pre-call and Mid-call Services

Procedures for Using Mid-call Services

There following three procedures are unique to Cisco VG248 style:

•Cisco VG248 Style Three-way Calling Procedure, page A-5

•Cisco VG248 Call Transfer Procedure, page A-5

•Cisco VG248 Conference Call Procedure, page A-6

Cisco VG248 Style Three-way Calling Procedure

Step 1 Perform a hookflash to place the current call on hold and obtain a second dial tone.

Step 2 Enter the telephone number or speed dial of the third party and wait for an answer. If you hang up before the third party answers, the new call is dropped. If the original caller is still holding, the telephone rings. If you perform a hookflash again before the third party answers, the new call is dropped and the original call resumes.

Step 3 After the third party answers, you can perform a hookflash to obtain a third dial tone. You now have the following options:

a.To switch to the other party, perform a hookflash. You can then switch back and forth.

b.To maintain the current state, press any other digit or let a time out occur (in four seconds by default).

Step 4 If you hang up while talking to one of the remote parties, you end the currently active call. However, if the other remote party is still holding, your phone will ring. If the previously active party has hung up, you can answer your phone and resume your conversation with the holding party.

Cisco VG248 Call Transfer Procedure

Step 1 Perform a hookflash to place the current call on hold and obtain a second dial tone.

Step 3 After the third party answers, you can perform a hookflash to obtain a third dial tone. You now have the following options:

a.To transfer holding party to the currently active party, press # then 2 on your telephone keypad.

b.To maintain the current state, press any other digit or let a time out occur (in four seconds by default).

Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SCCP)

	OL-3141-01	A-5

ATA 188, ATA 186 specifications

The Cisco Systems ATA 186, or Analog Telephone Adapter, revolutionized the way traditional telephony interacted with Voice over Internet Protocol (VoIP) systems. Designed primarily for home and small office use, the ATA 186 allows users to connect standard analog phones and fax machines to a network, enabling them to take advantage of the benefits of VoIP technology.

One of the defining features of the ATA 186 is its dual port architecture. It includes two FXS ports, allowing users to connect up to two analog telephones. This functionality means that multiple devices can leverage VoIP services simultaneously without the need for separate adapters for each phone. The flexibility of the ATA 186 helps streamline the user experience, facilitating voice communication over an IP network while ensuring users can still use their existing phone equipment.

The ATA 186 employs various technologies to maintain high-quality voice calls. It supports standard voice codecs such as G.711 and G.729, which ensure efficient bandwidth usage while preserving call clarity. The adaptive jitter buffer technology further enhances call quality, compensating for network variations and minimizing latency, which is crucial for clear and uninterrupted conversations.

Additionally, the ATA 186 provides users with advanced calling features that were traditionally available only on PBX systems. These features include caller ID, call waiting, and voicemail functionality, integrating seamlessly with typical telephony services. The device also supports T.38 fax relay, allowing users to send and receive faxes over the internet, thus addressing the needs of environments where fax communication remains essential.

The security of VoIP conversations is also a priority for the ATA 186. It employs encryption protocols such as Secure Real-time Transport Protocol (SRTP) and Transport Layer Security (TLS), ensuring that voice data is securely transmitted across the network. This focus on security helps protect sensitive information transmitted during calls.

Installation and configuration of the ATA 186 is streamlined, with an intuitive web-based interface that simplifies the setup process. This accessibility makes it suitable for users with varying levels of technical expertise, as frequently required adjustments, such as network configurations and firmware updates, can be easily managed.

In conclusion, the Cisco Systems ATA 186 stands out as a versatile and robust solution for users looking to integrate analog phones into a VoIP environment. With its dual port capabilities, high-quality voice codecs, advanced call features, and security measures, it offers a compelling choice for both residential and commercial users seeking seamless telephony integration. As technology evolves, devices like the ATA 186 remain cornerstones in bridging traditional telephony with modern communication systems.