AudioCodes MediaPack MP-124 User Manual

SIP User's Manual 256 Document #: LTRT-65415
MediaPack Series
The device also supports "double call hold" for FXS interfaces where the called party,
which has been placed on-hold by the calling party, can then place the calling party on hold
as well and make a call to another destination. The flowchart below provides an example of
this type of call hold:
Figure 8-15: Double Hold SIP Call Flow
The flowchart above describes the following "double" call-hold scenario:
1. A calls B and establishes a voice path.
2. A places B on hold; A hears a Dial tone and B hears a Held tone.
3. A calls C and establishes a voice path.
4. B places A on hold; B hears a Dial tone.
5. B calls D and establishes a voice path.
6. A ends call with C; A hears a Held tone.

AudioCodes MediaPack MP-124 Specifications

General

Model	MediaPack MP-124
Category	Gateway
Protocols	SIP, H.323, MGCP
Voice Codecs	G.711, G.723.1, G.726, G.729A/B
Fax Support	T.38
Management	SNMP
Security	TLS/SRTP
Power Supply	100-240 VAC, 50/60 Hz
Operating Temperature	0°C to 40°C (32°F to 104°F)
Storage Temperature	-25 to 70°C
Humidity	10% to 90%, non-condensing
Analog Ports	24 FXS