TD 92675GB
10 January 2011/ Ver. A
Configuration Manual
Ascom i62 VoWiFi Handset
50
in the RTP stream, i.e. from handset to handset. If set to “SIP INFO”, the DTMF
signalling will be sent using SIP signalling, i.e. via the PBX.
• Hold type – defines type of hold to send when the handset puts a call on hold. The
selection depends on what type of hold the PBX support. For more information
about what type of hold the PBX support, see the applicable documentation for
the PBX.
• Registration identity – defines if the endpoint shall use its number or ID for the
registration with the SIP proxy.
• Authentication identity – defines if the endpoint shall use its number or ID for the
authentication with the SIP proxy.
• Call forward locally – when enabled the call forwarding is handled locally by the
handset instead of updating the PBX.
Note: The handset must be switched on and within coverage to handle this.
• MOH locally – Music on hold is played by the handset i.e. if the PBX does not
supply MOH the handset plays a tone when the call is on hold.
• Hold on transfer – puts a second call on hold before transfer, which is required by
some SIP proxy servers.
• Direct signaling – defines whether calls originating from other sources than the
configured SIP Proxy should be accepted or redirected using "USE PROXY"
message.
6.9.3 Codec
A codec encodes a stream or signal for transmission. Codecs are often used in streaming
media applications. This setting defines how to packetize and compress the sound in a voice
call.
1 Select VOIP > General.
2In the Codec configuration drop-down list, select the applicable codec. The following
are possible:
• G.711 A-law (EU)
• G.711 u-law (US)
•G.729
• G.729A
3In the Codec packetization time configuration drop-down list, select packetization
time to use for speech (value between 10 and 60 ms). Default value is 20 ms.
6.9.4 Internal Call Number Length
Defines the maximum number of digits to be interpreted as an internal call. "0" means the
same number of digits as in the endpoint number.
1 Select VOIP > General.
2 In the Internal call number length field, enter the number of digits.
6.9.5 Emergency Number
This is a phone number for emergency calls. It is always possible to call this number,
regardless of whether phone-lock or key-lock are active or not.
1 Select Device > Call.
2 In the Emergency number field, enter the emergency number.