Routing script tutorial:Mini Development Guide
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params[:bridge][:ring_tone] = "ringing.wav" | params[:bridge][:ring_tone] = "ringing.wav" | ||
− | Prompt played between alerting state and | + | Prompt played between alerting state and answer state. Bypass any other ring back tone (RBT) configured in profile. |
=== max_call_duration === | === max_call_duration === | ||
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params[:bridge][:max_call_duration] = "60000" | params[:bridge][:max_call_duration] = "60000" | ||
− | Maximum call duration in millisecond for the current bridge. This timer is started when entering | + | Maximum call duration in millisecond for the current bridge. This timer is started when entering answer state. |
=== call_duration_reason === | === call_duration_reason === |
Revision as of 16:03, 1 December 2011
Call object
Get
Those function are used to get the call parameters. The possible parameters are described in the section "Call parameters"
called_number = caf_call.get :called
List_params
This function is used to retrieve the list of supported call parameters. For example to extract all the possible call params from the the call object and put it in hash.
caf_call.list_params.each {|param| call[param] = caf_call.get param }
Accept
This function is used to accept a call. It takes 2 arguments, the call parameters (hash) and the route parameters (hash).
Apply route remapping rules
caf_call.accept out_call, route
Refuse
This function is used to refuse a call with a reason code argument parameters :
caf_call.refuse :reason => :temporary_failure
The supported values are described in the section "Reason values".
Call parameters
The following call parameters are available in the call object:
- calling
- calling_noa
- calling_npi
- calling_display_type
- calling_display
- calling_presentation
- calling_screening
- calling_category
- private_display
- private_display_type
- private_address
- called
- called_noa
- called_npi
- charge_number
- charge_number_noa
- charge_number_npi
- redirecting_number_forward_enabled
- redirecting_number
- redirecting_number_noa
- redirecting_number_npi
- redirecting_number_presentation
- redirecting_number_screening
- redirecting_number_reason
- redirecting_number_counter
- original_called_number
- original_called_number_noa
- original_called_number_npi
- original_called_number_presentation
- original_called_number_screening
- original_called_number_reason
- original_called_number_counter
- ported_number
- ported_number_noa
- ported_number_npi
- nap
- uui
- uui_forward_enabled
- oli
- request_uri
- request_uri_forward_enabled
- sip_header
Notice: All values are documented in the noa_npi_remap.rb script and may change between major release.
Noa values
- unknown_number
- international_number
- national_number
- subscriber_number
- network_specific
- network_routing_national_format
- network_routing_international_format
- abbreviated_number
- subscriber_number_operator_requested
- national_number_operator_requested
- international_number_operator_requested
- no_number_present_operator_requested
- no_number_present_cut_through_call_to_carrier
- test_line_test_code
- non_unique_subscriber_number
- non_unique_national_number
- non_unique_international_number
- call_950_number
Those values will be remapped to the protocol specific NOA value. To provide protocol specific value:
- call_params[:called_noa] = 0x70
or
- call_params[:called_noa] = 112
Npi values
- unknown_number
- isdn
- telephony
- private
- data
- telex
- national
Calling Display Type values
- unspecified => Type is unspecified.
- calling_party_name => Type is 0xB1.
Those values will be remapped to the protocol specific Display Information Type value. To provide protocol specific value:
- call_params[:calling_display_type] = 0xB1
or
- call_params[:calling_display_type] = 177
Calling Display value
- call_params[:calling_display] = "Roger Fluffy"
Presentation values
- unspecified
- not_available
- allowed
- restricted
- addr_restricted
- name_restricted
Screening values
- unspecified
- no
- pass
- fail
- network_provided
Redirecting number reason values
ISDN:
- unknown
- busy
- no_reply
- deflection
- dte_out_of_order
- forwarding_by_called_dte
- unconditional
SS7:
- unknown
- busy
- no_reply
- unconditional
- deflection
- deflection_immediate
- mobile_not_reachable
UUI (user-to-user indication) values
Byte array represented as ruby String. Use call.get(:uui).each_byte to access the data in case the UUI contains non printable character.
OLI (originating line information) values
The OLI parameter is a string that represents an integer value from 0 to 255.
redirecting_number_forward_enabled values
Controls forwarding or discarding of redirecting number to outgoing call leg.
Values for this parameter are "0", "1", "false" or "true. 0/false: Redirecting number (and original called number) is not forwarded to outgoing call leg 1/true: Redirecting number (and original called number) is forwarded to outgoing call leg The value for this parameter at input of routing script depends on the "Forward redirecting number" parameter in the "Advanced" section of the Gateway configuration page of the Web Portal. The script may change this value to override the Gateway configuration.
uui_forward_enabled values
Controls forwarding or discarding of UUI to outgoing call leg.
Values for this parameter are "0", "1", "false" or "true. 0/false: UUI is not forwarded to outgoing call leg 1/true: UUI is forwarded to outgoing call leg The value for this parameter at input of routing script depends on the "Forward UUI" parameter in the "Advanced" section of the Gateway configuration page of the Web Portal. The script may change this value to override the Gateway configuration.
request_uri
Enables access to the Request-Line URI.
For example, if the Request-Line is:
Request-Line: INVITE sip:4175162082@172.22.45.13:5060;user=phone;transport=udp SIP/2.0
Then the retrieved request_uri will be "sip:4175162082@172.22.45.13:5060;user=phone;transport=udp SIP/2.0".
In the routing scripts, to retrieve only the called number, this script can be used:
if call_params[:request_uri] && call_params[:request_uri] =~ /sip:(.*)@.*/ call_params[:called] = $1 end
request_uri_forward_enabled values
Controls forwarding or discarding of request uri to outgoing call leg.The request uri is the information in the "Request-Line:" of the SIP INVITE message.
Values for this parameter are "0", "1", "false" or "true.
0/false: Request uri is not forwarded to outgoing call leg
1/true: Request uri is forwarded to outgoing call leg
The value for this parameter at input of routing script is always false.
Route parameters
All route may have these parameters:
- calling
- called
- nap
- remapped_calling
- remapped_called
- remapped_nap
- remapped_profile
Additionally it is possible to add dynamic route attributes in the web portal. These can be referenced by their name.
Bridge parameters
New feature in release 2.6, all bridges may have these parameters:
- announcement_tone
- call_progress_tone
- ring_tone
- max_call_duration
- call_duration_reason
- disconnect_tone
tone string format
All tone strings (:announcement_tone, :call_progress_tone, :ring_tone, :disconnect_tone) inside bridge parameters are using this format.
"file1.wav:repeat:start_off:end_off,file2.wav:repeat:start_off:end_off,file3.wav:repeat:start_off:end_off"
optional repeat parameter: number of times to play the file (0 and 1 have the same result)
optional start_off parameter : Start offset in milliseconds
optional end_off parameter: End offset in milliseconds
Example: "file1.wav,file2.wav:-1" will play file1.wav one time and then play file2.wav in loop.
Example: "file1.wav:0:1000:3000,file2.wav:2:5000:10000" will play file1.wav from second 1 to second 3 then file2.wav from second 5 to second 10 two times.
Example: "file1.wav:0:0:30000" will play file1.wav one time for a max duration of 30 seconds.
announcement_tone
params[:bridge][:announcement_tone] = "announcement.wav"
Prompt played on the incoming leg with the stream_server before any outgoing call is placed. The outgoing call occurs when the wav file is completed or when the "profile:Busy Tone max duration" is reached.
call_progress_tone
params[:bridge][:call_progress_tone] = "no_route.wav"
Prompt played after "announcement_tone" when reason is not "ok" or when outgoing call disconnect before answer state.
"none" value is used to bypass "profile:Generate Busy (Congestion) Tone" and to play no audio prompt.
ring_tone
params[:bridge][:ring_tone] = "ringing.wav"
Prompt played between alerting state and answer state. Bypass any other ring back tone (RBT) configured in profile.
max_call_duration
params[:bridge][:max_call_duration] = "60000"
Maximum call duration in millisecond for the current bridge. This timer is started when entering answer state.
call_duration_reason
params[:bridge][:call_duration_reason] = :resource_unavailable
Drop both legs with this reason when call duration (:max_call_duration) is reached.
disconnect_tone
params[:bridge][:disconnect_tone] = "max_duration.wav"
Prompt played (on the incoming leg only) when call duration (:max_call_duration) is reached before terminating the leg with call duration reason (:call_duration_reason).
Reason values
Check here for Termination Reason Cause codes:
Termination Reason Cause codes
Nap status
All the status fields of the NAPs are provided for use by the routing scripts. See the nap status provider for more details on which fields are available in the CEngineStatTransNap.hpp file.
Notice: These values may change between major release.
#define NAP_STATS_FIELDS \ /* Field, szName, szDescription, szOptions */ \ ( SIGNALING_TYPE, "signaling_type", "Signaling type.", "" ) \ ( INCOMING_CALL_CNT, "inst_incoming_call_cnt", "Instantaneous Count of incoming calls.", "" ) \ ( OUTGOING_CALL_CNT, "inst_outgoing_call_cnt", "Instantaneous Count of outgoing calls.", "" ) \ ( AVAILABLE_CNT, "available_cnt", "Number of available circuits or channels.", "" ) \ ( UNAVAILABLE_CNT, "unavailable_cnt", "Number of unavailable circuits or channels.", "" ) \ ( AVAILABILITY_PCT, "availability_percent", "Percentage of available circuits or channels.", "" ) \ ( USAGE_PCT, "usage_percent", "Percentage of used circuits or channels.", "" ) \ ( TOTAL_INCOMING_CALL_CNT, "total_incoming_call_cnt", "Total Count of incoming calls.", "" ) \ ( ASR_STRUCT, "asr_statistics_struct", "Detailed Answer-Seizure Rate Statistics.", "" ) \ ( GLOBAL_ASR_PCT, "global_asr_percent", "Global calculated ASR percentage.", "" ) \ ( TOTAL_OUTGOING_CALL_CNT, "total_outgoing_call_cnt", "Total Count of outgoing calls.", "" ) \ ( LAST_24H_ASR_PCT, "last_24h_asr_percent", "Last 24 hours calculated ASR percentage.", "" ) \ ( LAST_24H_OUTGOING_CALL_CNT, "last_24h_outgoing_call_cnt", "Last 24 hours outgoing calls.", "" ) \ ( HOUR_ASR_PCT, "current_hour_asr_percent", "Current hour calculated ASR percentage.", "" ) \ ( HOUR_OUTGOING_CALL_CNT, "current_hour_outgoing_call_cnt", "Current hour outgoing calls.", "" ) \ ( LAST_HOUR_ASR_PCT, "last_hour_asr_percent", "Last hour calculated ASR percentage.", "" ) \ ( LAST_HOUR_OUTGOING_CALL_CNT, "last_hour_outgoing_call_cnt", "Last hour outgoing calls.", "" ) \ ( AVAILABILITY_DETECTION_STRUCT, "availability_detection_struct", "Detailed availibility detection Statistics", "" ) \ ( POLL_REMOTE_PROXY, "poll_remote_proxy", "Remote proxy polling enabled", "" ) \ ( IS_AVAILABLE, "is_available", "Remote proxy actually available or not", "" ) \ ( TIME_SINCE_POLLING, "time_since_polling", "Time since the last availibility polling", "" ) \ ( TIME_AVAILABLE_SECONDS, "time_available_seconds", "Number of seconds since the NAP is available", "x" ) \ ( TIME_UNAVAILABLE_SECONDS, "time_unavailable_seconds", "Number of seconds since the NAP is unavailable", "x" ) \ ( REGISTRATION_STRUCT, "registration_struct", "Detailed registration Statistics", "" ) \ ( REGISTER_TO_PROXY, "register_to_proxy", "Register to proxy enabled", "" ) \ ( IS_REGISTERED, "registered", "Actually registered or not", "" ) \ ( TIME_SINCE_REFRESH, "time_since_refresh", "Time since the last refresh", "" ) \ ( TIME_REGISTERED_SECONDS, "time_registered_seconds", "Number of seconds since the NAP is registered", "x" ) \ ( TIME_NOT_REGISTERED_SECONDS, "time_not_registered_seconds", "Number of seconds since the NAP is not registered", "x" ) \ /*!< Nap Status Fields */
If the nap status is part of a substructure, it's name in the routing scripts must be composed of the structure name appended by an underscore and the field name.
For example the name to use for the global ASR percentage is:
asr_statistics_struct_global_asr_percent
It is also possible to add dynamic nap attributes in the web portal. These can be referenced by their name.
Test parameters
@call_params
That variable should contain a hash of call parameters that will passed to the routing script. This is equivalent to the incoming call parameters.
@nap_list
A list of hash containing the nap statuses. This is equivalent to the nap statuses at the time the call is to be routed.
The nap list is hashed by the nap names in UPPERCASE. It is important to consider this when creating new dynamic route or nap attributes that may nap names that will be used to fetch a status.
@params
A hash of hashes containing parameters. This hash contains bridge parameters and other kind of parameter groups may be added in the future.
Example: @params = {:bridge => {:announcement_tone, "announcement.wav"}}
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