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Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide (SCCP)
OL-3141-01
Appendix A How to Use Pre-call and Mid-call Services
Procedures for Using Mid-call Services
Cisco VG248 Style
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 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 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).
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.